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The Arizona Geological Survey is not responsible for the accuracy of the records, information, or opinions that may be contained in the files. The Survey collects, catalogs, and archives data on mineral properties regardless of its views of the veracity or accuracy of those data. 148 GEOLOGY AND MINERAL DEPOSITS, LINCOLN AND FLATHEAD COUNTIES . . NONMETALLIC DEPOSITS-BARITE 149 shovels. Waste is trucked to a dump at the south­ Some opalized rock was uncovered at the west of biotite and, if so, to determine the map) strikes N. 15° W. and dips 60° NE, crossing west end of the mine area. Milling is done by a end of a lower bench in 1964. nature of the alteration . . . the writer the Windjammer claim. The cross vein at the combination of wet and dry processes, including The Rainy Creek pluton has many minerals of favors the hypothesis that the vermicu- southwest ends of the Windjammer and Tungsten gravity methods, flotation, and screening. The potential value, besides the vermiculite, which is lite has been derived from biotite by the King claims (No. 3 on map) is 4Y2 feet wide, vermiculite concentrate is dried and screened to being marketed at present. Amphibole asbestos action of fluids of magmatic origin." strikes N. 60° W, and dips 47° SW. It is well ex­ various size ranges. (tremolite), the nearly pure feldspar in the syenite Another vermiculite deposit of undertermin- posed in a 35-foot drift, where its width averages The Rainy Creek intrusIve body is an elon­ dikes, biotite in the biotite mass, and apatite, as­ ed extent is north of Fleetwood Creek toward 30 inches. Some sulfides occur in this vein. The gate composite stock of biotite-magnetite-pyroxe­ sociated with vermiculite, pyroxene, and the mag­ the northern part of the Rainy Creek stock. (Fig. Tungsten King vein (No. 4 on map) trends N. 50° nite and syenite (Fig. 53) intruding strata of the netite-rich border phase of the biotite-magnetite 54). Eight unpatented claims, the Last Chance E. and dips 40° SE. It is a split off vein No.1 and Wallace Formation within the trough of a north­ pyroxenite intrusive body, may be profitable by­ and Last Chance No. 1 to 7, were staked by is 2 to 5 feet wide. Other veins crop out on the west-trending syncline. An alteration halo reported products if separation can be achieved economical­ George Ottoway and Mr. Fleetwood in 1925. The Buckskin and Windy Pass claims. The Buckskin to be 300 feet wide (Boettcher, 1963) consists of ly and if markets can be developed for these min­ property was acquired by H. J., H. L., and U. L. vein is 3Y2 feet wide, strikes N. 80° W., and 'dips recrystallized and sericitized metasedimentary erals. Poston of Kalispell in 1932. During the 1950's the 85° N. On the Rising Sun fraction, the vertical vein (No.1) is about 3 feet wide. All veins are in rocks surounding the magnetite pyroxenite; the Origin of the vermiculite is still debatable, property was leased and optioned by the F. &. S. intensity of alteration decreases outward from the Construction Company of Butte. Prior to 1964, the Wallace Formation, which trends about N. although some investigators have concluded that it 30° W. and dips 60° to 65° S. contact of magnetite pyroxenite with sedimentary is derived from biotite through hydrothermal al­ H. J. Poston assumed complete ownership of the rocks. A border phase of the magnetite pyroxenite teration or alteration by weathering and surface group. Tom Schessler (personal communication) re­ is magnetite rich, a grab sample of the material water. Boettcher (1963, p. 59) stated: A small irregular stock composed of por­ ported that a 3Y2-foot vein on the Buckskin claim assaying about 16 percent magnetite. phyritic syenite and some pyroxenite intrudes the contains 8 inches of quartz and barite on the "There is no evidence in the field or Boettcher (1963, p. 12) described two major Wallace Formation east of Bobtail Creek about hanging wall, 14 inches of yellow crystalline bar­ pyroxenite rock types; the more abundant type is in thin section to indicate that the ver­ ite in the center, and 20 inches of brecciated bar­ miculite (or biotite if the vermiculite was 10 miles north of Libby. The stock crops out on very coarse grained pyroxenite composed of py­ private land and National Forest land. At the ite, ankerite, and siderite on the footwall. Schess­ roxene (probably diopside) , mixed vermiculite and originally biotite) or the biotitite* core ler estimated the barite content of sections of are alteration products of the pyroxene. southwest end of the stock, an exposure in a hydrobiotite, and accessory fluorapatite; it con­ cut on the east side of the road exposes tremolite, veins as ranging from 40 to 60 percent. High-grade Furthermore, field relationships suggest tains all of the economic vermiculite in the stock. biotite, magnetite, and pyroxene minerals. Some parts of the veins may assay 85 to 95 percent that the venniculite (or biotite) and bio­ The grain size of the pyroxenite ranges from 1 cm vermiculite has been reported in the cut. Develop­ barium sulfate. titite are older than the veins, syenite to 2 meters or more in length, the average grain ment work consists of some pits in soil-covered dikes, and pegmatites, and could not be size being about 5 cm. The second, finer grained areas near the south end of the stock. type described by Boettcher forms zones within alteration products associated with their KENELTY BARITE the coarse-grained pyroxenite. It consists almost emplacement . . . It is concluded that entirely of pyroxene and contains only small quan­ biotite is a primary constituent of the BARITE The Kenelty barite lease is about 2 miles south of Loon Lake on the south side of a tribu­ tities of mixed venniculite and hydrobiotite, apa­ pyroxenite. The problem is to determine KOTSCHEVAR tite, garnet, magnetite, ilmenite, and sphene. if the vermiculite is an alteration product tary of the Fisher River, in Lincoln County. Ger­ The Kotschevar or Copper Mountain group is ald KeneIty of Libby discovered the vein during A mass of biotite, 600 by 1,000 feet, near *Biotitite is a term used by Gruner (1934) and Boettcher the center of the biotite-magnetite pyroxenite on Copper Mountain 5 miles south of Troy in the logging operations in 1960 and leased the property to describe a rock composed mainly of biotite, but con­ from The Anaconda Company in 1961. The proper­ intrusive body was described by Boettcher (1963, taining feldspar, pyrite, and calcite. Troy district. The property consists of nine un­ ty has been inactive for several years. p. 13) as consisting of 90 percent biotite and the patented lode claims and three millsites (Fig. 55). other 10 percent feldspar, pyrite, and calcite. The The group was purchased in 1958 from James B. Three trenches and a strip pit 175 by 18 by Robinson of Spokane, Washington, by Donald and contact between biotite and pyroxenite is sharp. 5Y2 feet expose a barite vein along a probable Lendal Kotschevar of Sandpoint, Idaho, and Mis­ Syenitic pegmatite bodies as much as 10 feet wide strike length of about 600 feet. Width of the vein soula, Montana. No production has been reported. ranges from 10 to 18 feet. The vein strikes N. 65° intrude both biotite pyroxenite and biotite. 10 II The property is developed by an 80-foot adit to 75° W. and is vertical or nearly vertical at the Bordering the biotite-magnetite pyroxenite in­ Co ntact of py rox enite . trusive body on the southwest (Fig. 53) is a /' - -.... I stock ond sed iments (accessible) on Vein No.1, a 35-foot adit on Vein center cut. The massive white and reddish-white syenite body, from which an apophysis extends No.3, and several pits and cuts on the other barite contains minor white quartz, hematite, and I In N-...... / T. veins. sericite. South of the stripped area (Fig. 56) is a into the pyroxenite. The main syenite body is 3t coarse-grained microcline microperthite containing Three branching fracture-filling veins and fourth cut exposing a 2Y2- to 3-foot vein, which 20 to 30 percent muscovite. Bordering the syenite ( I I I <-"~~ V' ' one cross vein ranging from 1 to 5 feet in width strikes N. 30° E. and is vertical. The barite con­ apophysis and related syenite dikes in the pyroxe­ strike northwest to northeast (DeMunck and Ack­ tains some quartz and small masses of purplish­ nite are alteration halos of tremolite after pyrox­ erman, 1958). The three branch veins di p east maroon hematite and sericite. Country rock is enite, which are of potential economic import­ /' ' '"'y' and the cross vein dips southwest. The barite sericitic light-gray, yellow-gray, and yellow-brown ance as a source of brittle asbestos. Southwest of I 1 ~'<,~ ~' c_ ~t4 \ vein on the Julia K. claim (No.1 on map, Fig. 55) noncalcareous siltstone and argillite of the Libby the syenite mass is a coarse-grained nepheline strikes about N. 20° W. and dips 44° NE, but Formation. Samples of barite from surface cuts

---, 1912, Geology of the North American cor­ Dorsey, G. E., 1926, The origin of the color of red and green-gray sericitic talc containing dissemin­ WOLLASTONITE beds: Jour. Geology, v. 34, p. 131-143. ated pyrite, iron oxides, and some quartz. dillera at the 49th parallel: Canada Geol. Sur­ Two bodies of wollastonite (CaSiOs) on the vey Mem. 38, 888 p. Douglas, R. J. W., 1958, Mount Head map area, The deposit may have been formed by hydro­ south side of Kennedy Gulch, 5Y2 miles east of Davis, W. M., 1916, The Mission Range, Montana: Alberta: Canada Geol. Survey Mem. 291, 241 p. thermal alteration of favorable Striped Peak Libby, strike N. 30° W. They are poorly exposed Geog. Rev., v. 2, p. 267-288. Eckelmann, W. R., and Kulp, J. L., 1957, Uranium­ strata. and unexplored, but each is at least 2 feet wide, ---,1921, Features of glacial origin in Montana lead method of age determination: Geol. Soc. and they are about a quarter of a mile apart. Coun­ and Idaho: Assoc. Am. Geographers Annals, v. America Bull., v. 68, p. 1117-1140. try rock is the Wallace Formation. TREMOLITE 10, p. 87-95. Elrod, M. J., 1903, The physiography of the Flat­ A sample from the outcrop assayed 42 per­ In the Rainy Creek stock, mass-fiber tremolite Dawson, G. M., 1875, Report on the geology and head Lake region: Montana State Univ. Bull. 16, cent CaO, 45.80 percent silica, 3.90 percent A1 0 , of contact-metamorphic origin borders syenite 2 3 resources of the region in the vicinity of the p. 197-203 (Missoula). 5 percent CO , 1.20 percent ferric oxide, and 0.50 dikes and quartz veins. The tremolite has formed 2 49th parallel from the Lake of the Woods to Emmons, W. H., and Calkins, F. C., 1913, Geology percent ferrous oxide. Magnesium oxide was nil. from pyroxenite. Tremolite asbestos has economic the Rocky Mountains: British North American and ore deposits of the Philipsburg quadrangle, potential for use in many applications, such as Wollastonite is used in the ceramic industry, Boundary Comm., Montreal. Montana: U. S. Geo!. Survey Prof. Paper 78, p. roofing, where the spinning qualities of the higher the chemical industry, in high-grade electrical in­ ---, 1885, Report on the region in the vicinity 19-264. grade chrysotile is not needed. The deposit has sulators, and as a nonmetalic filler. of the Bow and Belly Rivers, Northwest Terri­ Erdmann, C. E., 1941, Geology of dam sites on the been discussed under Vermiculite. Asbestos tory: Canada Geol. Survey Rept. of Progress, upper tributaries of the Columbia River in Idaho (tremolite, a cross-fiber variety) also occurs at CLAY 1882-1884. and Montana: U. S. Geol. Survey Water-Supply the Esther May and Larue-Cripe prospects in the Dawson, J. W., 1885, On the Mesozoic floras of Paper 866-A, p. 1-36. Yaak River area, Lincoln County. Clay is widespread in Lincoln and Flathead the Rocky Mountain region of Canada (abs.): ---, 1944, Geology of dam sites on the upper Counties; varieties include laminated glacial-lake Science, v. 5, p. 531-532. tributaries of the Columbia River in Idaho and ESTHER MAY clay, alluvial clay, and clay formed by hydrother­ Deiss, C. F., 1933, Paleozoic formations of north­ Montana: U. S. Geo!. Survey Water-Supply Pa­ mal alteration of igneous rock. No special study The Esther May claims, about half a mile western Montana: Montana Bur. Mines and per 866-B, p. 37-116. of clays was made for this report, but samples of northwest of Yaak in the northwest corner of Geology Mem. 6,51 p. clay from the area have been included in a con­ ---, 1945, Report on geologic reconnaissance Lincoln County, were staked by Romeo and Vir­ tinuing Bureau study of all Montana clay and ---, 1935, Cambrian-Algonkian unconformity of the Clark Fork-Kootenai River development ginia Garrison in 1946. The group comprises two shale. Samples from selected areas have been in western Montana: Geol. Soc. America Bull., plan, Lincoln and Sanders Counties, Montana: unpatented claims, the Esther May No. 1 and 2. examined for their suitability as ceramic raw ma­ v. 46, p. 95-124. U. S. Geo!. Survey No. 120296. In 1948 the claims were leased to Hough and Love­ terials, as a source of alumina for aluminum re­ ---, 1936, Revision of type Cambrian forma­ ---, 1947, Geology of dam sites on the upper land of Spokane, Washington, for a period of 10 covery, and as possible expandable material for tions and sections of Montana and Yellowstone tributaries of the Columbia River in Idaho and years. The lessees drilled twelve to fifteen holes lightweight aggregate. Clays that have been ex­ National Park: Geol. Soc. America Bull., v. 47, Montana: U. S. Geo!. Survey Water-Supply near a small asbestos vein exposed on a bluff. All amined are tabulated (p. 154). The results of test­ p. 1257-1342. Paper 866-C, p. 117-216. holes were reported to have intersected tremolite ing are given in the publications listed, to which at depths of 20 to 30 feet. In 1958, H. P. Reins­ ---, 1937, Cambrian stratigraphy and trilobites Fassett, C. M., 1904, Independence group: Private the reader is referred for details. of northwestern Montana (abs.) : Geol. Soc. Rept. to H. W. Dickey, 5 p. hagen, Sr., and H. P. Reinshagen, Jr., of Libby, America Proc. 1936, p. 69-70. Fenneman, N. M., 1931, Physiography of the west­ leased the property for one year, with option to ---, 1938, Cambrian formations and sections in ern United States: New York, McGraw-Hill Book buy, but dropped the option. STONE part of Cordilleran trough: Geol. Soc. America Co., 534 p. A vertical vein of tremolite about 3 inches TUFA Bull., v. 49, p. 1067-1168. Fenton, C. L., and Fenton, M. A., 1937, Belt Series wide, trending N. 10° W., is exposed at the base A deposit of calcareous tufa on the D. A. ---, 1939, Cambrian stratigraphy and trilo­ of the north; stratigraphy, sedimentation, pal­ of a bluff. Wallace country rock also strikes N. Sheffler ranch near the mouth of a small tributary bites of northwestern Montana: Geol. Soc. eontology: Geol. Soc. America Bull., v. 48, p. 10° W. and dips 75° NE. A second vein, 6 inches of the Kootenai River, about 2 miles southeast of America Spec. Paper 18, 135 p. 1873-1940. wide, has been explored by a shallow pit, in which Leonia, is approximately half a mile from the ---, 1941, Cambrian geography and sedimen­ Flint, R. F., 1924, A brief view of Rocky Mountain the vein trends N. 70° W. and dips 60° SW. Great Northern railroad. It is estimated to be tation in the central Cordilleran region: Geol. structure: Jour. Geology, v. 32, p. 410-431. Autunite, a calcium uranium phosphate mineral, 1,200 feet long, 50 feet wide, and +12 feet deep, Soc. America Bull., v. 52, p. 1085-1115. was reported found associated with a 3-inch syen­ Folk, R. L., 1954, The distinction between grain and assays show 85 to 90 percent CaCOa. Three ---, 1943a, Stratigraphy and structure of the size and mineral composition in sedimentary ite dikelet in a small pit at the face of a bluff. The other depOSits of tufa are on the Marion Fisher southwest Saypo quadrangle, Montana: Geol. rock nomenclature: Jour. Geology, v. 62, p. 344- dikelet strikes N. 70° E. and dips 70° SE. Wallace ranch 3Y2 miles southeast of Leonia. Soc. America Bull., v. 54, p. 207-260. 359. argillite has been hydrothermally altered; silica has been introduced into the surrounding country Another body of calcareous tufa is poorly ex­ ---, 1943b, Structure of the central part of ---, 1961, Petrology of sedimentary rocks: posed 3 miles northeast of Loon Lake, along the Sawtooth Range, Montana: Geol. Soc. America Austin, Texas, Hemphill's Book Co., 154 p. rock. A metadiorite body whose trend was not de­ termined crops out in the area. road on the east side of Pipe Creek in Lincoln Bull., v. 54, p. 1125-1165. Fryklund, V. C., Jr., 1964, Ore deposits of the County. It contains about 88 percent calcium car­ ---, 1947, Geologic map of Silvertip quad­ Coeur d' Alene district, Shoshone County, Ida­ bonate and was deposited by a spring. rangle, northwest Montana: Unpub. Geol. map. ho: U. S. Geol. Survey Prof. Paper 445, 103 p. LARUE· CRIPE DeMunck, V. C., and Ackerman, W. C., 1958, Bar­ Fuller, M. B., 1927, Stratigraphic boundaries in The Larue-Cripe prospect, about 1 mile south Calcareous tufa near the Jack Garrison ranch ite deposits in Montana: Montana Bur. Mines Glacier National Park, Montana (abs.): Geo!. of Roderick Butte, consists of a narrow tremolite on the J. Neil haul road on Callahan Creek south and Geology Inf. Circ. 22, 30 p. Soc. America Bull., v. 38, p. 153. asbestos vein exposed in two small surface pits. of Troy assayed about 90 percent calcium carbon­ Dingman, O. A., 1932, Placer mining possibilities Gale, H. R., 1934. Note on Cambrian fossils near The vein is 3 to 6 inches thick, strikes N. 70° E., ate. in Montana: Montana Bur. Mines and Geology Libby, northwestern Montana: Jour. Geology, v. and dips 55° NW. The country rock is ripple-mark­ These deposits of tufa are possible sources Mem. 5, 33 p. 42, p. 175-179. ed and mud-cracked Wallace argillite. of rock for the manufacture of quicklime. 154 GEOLOGY AND MINERAL DEPOSITS, LINCOLN AND FLATHEAD COUNTIES REFERENCES 159

LIMESTONE this locality is composed of fragments of late REFERENCES The fault block of Mississippian(?) strata Cenozoic shells. Alden, W. C., 1953, Physiography and glacial geol­ the Green River epoch: U. S. Geo!. Survey Prof. north of Eureka was sampled. A chip sample ogy of western Montana and adjacent areas: Paper 158-E, p. 86-110. across 300 feet of the limestone near the abandon­ QUARTZITE U. S. Geol. Survey Prof. Paper 231, 200 p. Burling, L. D., 1914, Early Cambrian strati­ ed Stahl kiln (Fig. 37) contained 98.6 percent The silica content of samples of Ravalli graphy in North American cordillera, with a calcium carbonate, 0.76 percent magnesia, 0.05 quartzite in Lincoln County that were analyzed Anderson, A. L., 1930, Geology and ore deposits of discussion of the Albertella and related faunas: percent alumina, and 0.15 percent ferric iron. A ranged from 65 percent to about 86 percent, and, the Clark Fork district, Idaho: Idaho Bur. Mines Canada Geo!. Survey Museum Bull. 2, p. 93-129. 200-foot chip sample in the vicinity of the kiln as in Flathead County, the silica content is too and Geology Bull. 12, 132 p. contained 97.4 percent calcium carbonate, 1.48 low to permit commercial use of the rock as a Atwood, W. W., 1916, The physiographic condi­ Byrne, J., and Berry, J. J., 1902, Inspector of Mines percent magnesia, 0.53 percent alumina, and 0.15 source of silica. In some areas the rock might be tions at Butte, Montana, and Bingham Canyon, reports: Independent Publishing Co., Helena, percent ferric iron. The lime kiln was operated by quarried for use as a building stone, especially Utah, when the copper ores in these districts 96 p. Art Stahl in 1905, and bulk lime was shipped to where the red and purple colors are pleasing. In were enriched: Econ. Geology, v. 11, no. 8, p. Calkins, F. C., and MacDonald, D. F., 1909, Geo­ Kalispell, Libby, and Great Falls, where it sold some localities it might be utilized as a source of 698-740. logical reconnaissance in northern Idaho and northwestern Montana: U. S. Geol. Survey Bull. for $10 a ton. During a period of 2 years two quartz chips. Ayres, H. B., 1899, The Flathead Forest Reserve: 384, p. 7-108. men produced 6 tons of bulk lime a day and a total Wallace beds in the vicinity of Kootenai Falls U. S. Geol. Survey 20th Ann. Rept., pt. 5d, p. of 165 tons. along Highway 2 may be a source of flagstone. 245-316. Campbell, A. B., 1960, Geology and mineral de­ Cambrian (?) magnesian limestone (about 80 Natural cleavage is prominent in beds that crop posits of the St. Regis-Superior area, Mineral ---, 1901, Lewis and Clark Forest Reserve, percent lime carbonate) is exposed 2.6 miles east out in the area. County, Montana: U. S. Geo!. Survey Bull. 1082- Montana: U. S. Geo!. Survey 21st Ann. Rept., I, p. 545-612. of Libby bridge on U. S. Highway 2. A small de­ Finely banded red and green argillite near pt. 5b, p. 27-80. posit of Lower Paleozoic limestone crops out at the top of the Wallace Formation in Big Foot Cannon, R. S., Jr., Pierce, A. P., Antweiler, J. C., Barnes, W. C., 1963, Geology of the northeast "The Cliff" 12 miles southeast of Libby. Creek, northeast of Troy, would make excellent and Buck, K. L., 1962, Lead-isotope studies in Whitefish Range, northwest Montana: Unpub. flagstone. A quarter of a mile southeast of Stryk­ the Northern Rockies, U. S. A., in Petrologic Cambrian and Devonian limestone and dolo­ Ph.D. Dissert., Princeton Univ., 102 p. mite and Mississippian limestone crop out exten­ er, Ravalli quartzite borders the old road bed of studies-A volume in honor of A. F. Budding­ sively in southeastern Flathead County. These U. S. Highway 93. These rocks are used for dec­ Bauerman, Hilary, 1885, Report of the geology ton: Geol. Soc. America, p. 115-131. Paleozoic limestone beds are of fair grade but orative building stone in the Eureka area. of the country near the forty-ninth parallel of Channing, J. P., 1896, Report on Independence and north latitude west of the Rocky Mountains: are as yet accessible only with difficulty. Middle Piegan (Siyeh Formation) carbonate­ Little Willie group of claims, Flathead County, Canada Geol. Survey Rept. of Progress 1881-84, Montana: Private Rept. to Mr. Hatcher and Mr. A grab sample of marl at Marl Lake 3 miles bearing rocks contain 34 to 53 percent silica, 9.80 p. 6b-152c. southwest of Fortine contains 52.8 percent cal­ to 13.20 percent alumina, 12.90 to 27 percent cal­ Coram, 6 p. cium oxide. The marl or fresh-water limestone at cium oxide, and 1.20 to 6.11 percent magnesium Beer, L. P., 1960, Geology of the Thompson Lakes Chapman, R. H., 1900, Notes on the structure of northwest 15-minute quadrangle, northwest the Rocky Mountains in the Lewis and Clark Montana: Unpub. M. S. Thesis, Univ. Massachu­ timber reserve, Montana: Am. Inst. Mining En­ setts, 96 p. gineers Trans., v. 29, p. 153-156. Sample Age and location Sec. T.N. R.W. Publication Bentzin, D. A., 1960, Geology of the Weasel Creek Childers, M. 0., 1963, Structure and stratigraphy area, northern Whitefish Range, Flathead and of the southwest Marias Pass area, Flathead Lincoln County Clays Lincoln Counties, Montana: Unpub. M. S. Thesis, County, Montana: Geo!. Soc. America Bull., v. 1 Paul Plaas, south Libby ...... 10 30 31 Inf. Circ. 23 Montana State Univ. (Missoula). 74, p. 141-164. 164 Glacial lake clay, 9 miles NW of Troy ...... 5 32 34 Bull. 13 Bevan, Arthur, 1929, Rocky Mountain front in Clapp, C. H., 1932, Geology of a portion of the 168 Pleistocene, 9 miles NW of Troy ...... 5 32 34 do Montana: Geol. Soc. America Bull., v. 40, p. Rocky Mountains of northwestern Montana: 169 Pleistocene, Garrison ranch, Yaak ...... 5 35 32 do 428-456. Montana Bur. Mines and Geology Mem. 4, 30 p. Flathead County Clays Beveridge, A. J., and Folinsbee, R. E., 1956, Dating ---, and Deiss, C. F., 1931, Correlation of Mon­ 175 Nita Robbins ranch, Creston .... 26 27 20 do Cordilleran orogenies: Royal Soc. Canada Trans., tana Algonkian Formations: Geol. Soc. America 288 Pleistocene, Kalispell 8 28 21 Bull. 27 v. 50, sec. 4, p. 19-43. Bull., v. 42, p. 673-695. 349 East of Kalispell ...... NW1,4 8 28 21 Bull. 45 Billings, Marland, 1938, Physiographic relations of Clarke, F. W., 1924, The data of geochemistry: 350 Kalispell ...... SW 14 8 28 21 do the Lewis overthrust in northern Montana: Am. U. S. Geol. Survey Bull. 770, p. 1-783. 351 Bauska horse farm ...... S y:! 5 28 21 do Jour. ScL, 5th ser., v. 35, no. 208, p. 260-272. 352 Bauska horse farm ...... SW1,4 Crowley, F. A., 1960, Columbium-rare-earth de­ 5 28 21 do Billingsley, Paul, 1915, Report on the geological 353 5 Miles S. of Creston ...... NE1,4 posits, southern Ravalli County, Montana: Mon­ 3 27 20 do examination of timber lands in Lincoln County, 354 Whale Creek ...... SE1,4 tana Bur. Mines and Geology Bull. 18, 47 p. 30 36 21 do Montana: Private Rept. to The Anaconda Com­ 355 Flathead River road ...... 21 35 ---, 1963, Mines and mineral deposits (except 21 do pany, Butte, Montana, 41 p. 356 Road cut, U. S. 2 ...... WY:! 12 27 24 do fuels), Sanders County, Montana: Montana Bur. 376 Near Olney ...... SW1,4 18 32 23 do Boettcher, A. L., 1963, Geology and petrology of Mines and Geology Bull. 34, 58 p. 378 Hog Heaven district ...... SW1,4 26 25 23 do the Rainy Creek intrusive near Libby, Montana: Dahlem, D. H., 1959, Geology of the Yaak River­ 379 Hog Heaven district ...... NE1,4 SW1,4 22 25 24 do Unpub. M. S. Thesis, Pennsylvania State Univ., Kootenai River confluence: Unpub. M. S. Thesis, 380 Hog Heaven district ...... 18 25 24 do 70 p. Montana School of Mines (Butte), 128 p. 381 Dalimata ranch ...... SW1,4 7 31 17 do ---, 1966, The Rainy Creek igneous complex Daly, R. A., 1906, The nomenclature of the North 382 Burdick ranch ...... SW1,4 18 31 22 do near Libby, Montana: Unpub. Ph.D. Dissert., American cordillera between the 47th and 53rd 384 Mrs. L. Dustin ...... 32 23 do Pennsylvania State Univ., 155 p. parallels of latitude: Geog. Jour., v. 27, p. 586- 461 Hog Heaven district ...... N.E. cor. 19 24 23 Bull. 55 Bradley, W. H., 1929, The varves and climate of 606. 158 GEOLOGY AND MINERAL DEPOSITS, LINCOLN AND FLATHEAD COUNTIES NONMETALLIC DEPOSITS-COAL AND PEAT 155

on one side has moved relative to that on the Mud-chip breccia.-Angular fragments of mud­ oxide, plus iron oxide. Such rocks can hardlv be A morainal gravel deposit is being excavated other side. cracked surface material incorporated in over­ classed as limestone, although they are ofte~ so by the Mount View Paving Company adjacent to honored. The so-called limestone could be used the Stillwater River at the northeast edge of Kal­ Ferruginous.-Iron bearing. lying sedimentary rock; formed by redeposition near original site. as building stone and ornamental stone, as the ispell. The Engebretson Gravel Company is exca­ Foliation.-Laminated structure derived by segre­ massive rock has a pleasing appearance, owing vating the eastern extension of this morainal de­ to the mottling caused by "molar tooth" or segre­ posit. gation of different minerals into layers parallel Oscillation ripple mark.-Symmetrical ripple gation structure. Cubic crystals of pyrite are a Other gravel pits throughout Flathead and to schistosity. marks, neither side being steeper than the other; common component in outcrops west of the Rocky crests are sharp and narrow; formed by oscillat­ Stillwater Valleys have intermittently provided Formation.-Mappable geological unit or large Mountain Trench but are not as prevalent east­ gravel and sand for road construction and other ing movement of water or wind. persistent deposit or body of rock. ward. Pyrite is a detrimental impurity in building uses. Phyllite.-ArgiIIaceous rock intermediate in meta­ stone. Analyses of Piegan rocks are given in the Fracture cleavage.-Parting along closely spaced Appendix. morphic grade between slate and schist. parallel surfaces of fracture, independent of any The hydrothermally altered banded tuff north COAL AND PEAT Porphyroblasts.-Large grains or perfect crystals parallel arrangement of mineral particles. of Niarada is quarried by the Montana Sunset Coal lands belonging to the First National distributed in finer groundmass of metamorphic Company for decorative building stone, but pro­ Bank of Butte are situated on the "coal banks" Graded bedding.-Grain-size gradation from duction is sporadic and total production is small. rocks. along Coal Creek adjacent to the North Fork coarse below to fine above, within a single Currently this stone is being used for facing build­ Flathead River in northern Flathead County. The stratum. Regression.-Seaward retreat of shoreline where­ ings in Libby. ground is on a gentle east-dipping bench covered by younger strata are offset seaward. Homocline.-Persistent dip in one direction only. Three quarries southeast of the Flathead mine with second-growth lodgepole pine. Other lignite Scour-and-fill channe1.-Channel cut by down­ have produced lightweight concrete aggregate. The depOSits are reported on the South and Middle Hydrobiotite.-Mixed-layer silicate composed of rock is porous altered tuff. cutting current and later filled with sediment. Forks of the Flathead River, but only the North biotite and vermiculite. Fork area was worked to any extent (Rowe, Sericitization.-Development of sericite in schist Hydrothermal alteration.-AIteration by hot so­ FELDSPAR 1906) . or other rocks. lutions or hot waters. The Warland stock contains abundant un­ The North Fork mine was operated on thin Shear zone.-Zone in which shearing occurred, altered porphyritic and equigranular feldspar lenticular beds of lignite in the lower part of the Intermontane.-Between mountain ranges. characterized by crushed or sheared rock frag­ (microcline perthite and oligoclase), the feldspar Kishenehn Formation, which here strikes N. 55° to phenocrysts averaging about 5 mm in length al­ Intraformational breccia.-A coarse deposit form­ ments. 60° W. and dips 30° to 40° N. (Erdmann, 1947, ed by almost simultaneous erosion and deposi­ though some may be as long as 30 mm. Some p. 207). The mine is reached by a short access tion of the strata in which it occurs. Sheeted vein.-Group of closely spaced distinct quartz, iron oxides, and pyrite were observed in road that leaves the North Fork road at a point parallel fractures filled with mineral matter and some specimens, but feldspar constitutes about 6.3 miles above Big Creek Ranger Station. The Isoclinal.-Identical dip of strata on both limbs of separated by layers of barren rock. 80 percent of the rock. The stock may provide a installations include a tipple and six buildings, of a fold. source of feldspar. which only two are in fair condition. Sill.-Tabular intrusive ingeous body emplaced Kaolinization.-Alteration or replacement of feld­ Potash- and soda-bearing feldspars are used Wood (1892, p. 57) described the coal in the spars or other minerals to form clay. parallel to bedding or schistocity of enclosing in the glass, pottery, and enamel industries. A Flathead coal basin near Coal Creek as a fair rocks. small percentage of the feldspar produced is used grade of lignite having no appreciable coking Laminated.-(Sedimentary rock) composed of lay­ in the soap and abrasive industries. ers less than 1 cm thick. Stock.-Body of plutonic rock less than 40 square qualities but containing some small nodules of mineral resin. He described a northeast-striking Lineation.-Parallel orientation of structural or miles in extent; contacts generally are discor­ GRAVEL AND SAND entry (Emerson Tunnel, 2 miles from Coal Creek) textural features that are lines rather than dant and dip steeply outward. Heterogeneous mixtures of gravel and a small as 102 feet long in which a 45-foot section con­ planes. Strike.-The bearing of a horizontal line in the amount of sand are associated with morainal ma­ tains intercalated clay, clay shale, and coal beds. Five coal seams in the section range in thickness Load cast.-Roll, knob, or irregularity, at base of plane of an inclined or vertical bed or structure. terial and stream alluvium. In most surface ex­ from 22 to 48 inches, but a sixth coal bed was stratum, that projects into underlying stratum; posures the deposits are unindurated, but deeper Syncline.-A fold or arch in rock strata in which reported to be 13V2 feet thick. The combined produced by differential compaction. beds exposed along the Flathead and North Fork the limbs dip toward the axis. Flathead Rivers are cemented with a calcareous thickness of these beds in the section amounted Meta-.-Synomymous with change; a prefix mean­ binder. to 29 feet. Wood described six of the beds as Transgression.-Landward advance of shoreline ing change. The Valley Sand and Gravel Company oper­ workable. Rowe (1906, p. 49) described the lig­ whereby younger strata are offset landward. ates a gravel pit in a moraine and also obtains nite on the North Fork 30 miles from the Great Metamorphism.-A change in texture or compo­ Northern Railroad (Columbia Falls siding) as con­ sition of a rock after solidification; produced by Unconformable.-Relationship between underlying gravel and sand by dragline from bars in Flat­ head River adjacent to the U. S. Highway 2 bridge Sisting of eight seams 18 inches to 12 feet thick. deformation, rise in temperature, or both. and overlying rocks that are separated by a sur­ It was being developed by the Flathead Coal and face of erosion or nondeposition. 3 miles northeast of Kalispell. The Flathead Coun­ Metasediment.-Partly metamorphosed sedimen­ ty Road Department operates a gravel pit 2V2 Iron Company. Rowe reported the dip as 45°, the tary rock. Variegated.-Many-colored; connotes random dis­ miles east of Kalispell in stratified and fairly well dimensions of the deposit as 4 miles by 2 miles, and four of the eight seams as having an aggregate tribution of colors. sorted material, possibly in part related to a del­ Mold.-Impression left by removal of shell or oth­ thickness of 30 feet of lignite. er organic structure, crystal, etc. taic deposit formed when the alluvium-bearing Vermiculite.-Hydrous silicate of aluminum, mag­ river emptied into the glacial lake that filled Flat­ The North Fork mine was visited by C. E. Moraine.-Accumulation of drift built by direct nesium, and iron characterized by marked ex­ head Valley to a temporary level slightly above Erdmann in 1934, at which time the daily produc­ action of glacial ice. pansion upon heating. 3,000 feet. tion was 10 tons, and total production for 1933 156 GEOLOGY AND MINERAL DEPOSITS, LINCOLN AND FLATHEAD COUNTIES CONCLUSIONS 157 amounted to 600 tons. Small-scale mining opera­ may be related to the Swan fault and the fault CONCLUSIONS tions by room-and-pillar method had been carried paralleling the east shore of Flathead Lake, which Fissure-filling and replacement-type ore de­ on for several years at the property. According displace east-dipping strata of the Belt Series. examined for possible nickel content. to Ted Ross of Polebridge, the property was act­ Rocks younger than Belt could occur at depth be­ posits commonly occupy faults in Prichard and ive between 1936 and 1942, and coal was sold at neath Flathead Valley; the source might be Ter­ Ravalli strata. The faults closely follow the In the Star Meadow area in Flathead County, $6 a ton throughout Flathead Valley. The mine tiary sediments buried beneath glacial drift with­ crests and troughs of anticlines and synclines. Ad­ narrow fissure-filling veins in lower strata of the was closed at the beginning of World War II and in the valley proper. ditional exploration along such fault fissures in Piegan Group contain massive copper sulfide ores. has been idle since. In 1946 Herb Poston of Kalispell drilled a favorable formations may reveal new ore deposits The underlying Ravalli strata are believed to be The mine was developed by a southwest­ well to a depth of 1,475 feet to explore an area within the area. a better host rock for mineral deposits, therefore bearing 325-foot entry (now caved) adjacent to several miles southeast of Kalispell for oil and they are a potential target area for larger ore and about 13 feet above the North Fork Flathead gas. Gravel was penetrated for the entire depth of deposits in this district. River. Considerable water was encountered in the the hole, and the well was abandoned. Purcell Lava crops out extensively in north "adit" during mining operations. Black lignite in­ and northeast Lincoln County, and chalcopyrite, In Montana Bureau of Mines and Geology Bull. terbedded with thin seams of clay, siltstone, and A Flathead Valley rancher living in the vicin­ barite, and magnetite are locally associated with sandstone occurs in a zone described by Erdmann ity of Creston is reported (personal communica­ the flow. The Purcell Lava should be investigated 48 and 61, geochemical stream-sediment and soil­ tion, O. A. Moen) to have drilled a well to 700 (1947, p. 206) as 13 feet thick; only the upper 6 for nickel and platinum, elements that are com­ sampling projects in Lincoln and Flathead Coun­ feet through gravel, sand, and clay before aban­ to 8 feet of the zone was mined to extract a lignite monly associated with basic igneous rocks. Nickel ties delineated what are thought to be favorable seam 3 feet thick. doning the drilling. has been reported from basic sills or dikes in the areas for mineral exploration. Further investiga­ Tom Crum reported a lignite outcrop on low­ In central and northwest Montana, petroleum Ruby-Star Creek area west of Troy. Basic igneous tion in the Yaak, Swamp Creek, Star Meadow, and er Hay Creek road, 10 miles northwest of the and gas possibilities are probably limited to the rocks in southwestern Lincoln County should be Hog Heaven areas is recommended. "coal banks", and Erdmann (1947, p. 157) de­ petrolifero us and brecciated Devonian rocks and scribed a 500-foot entry striking northwest on the brecciated basal Mississippian strata hav­ GLOSSARY OF TERMS west bank of the Flathead River 2 miles north of ing a primary crystalline porosity that can be de­ Coram. The adit was driven in red-gray clay con­ veloped into effective porosity and permeability. Anticline.-A fold or arch in rock strata in which cent origin, including some soil but predomin­ taining carbonaceous streaks and fragments of In addition, pre-upper Jurassic erosion and weath­ the limbs dip away from the axis. antly rock fragments, mantling lower part of carbonized logs. Erdmann stated that the carbon­ ering affected Mississippian strata, thereby creat­ slope not far below their source. Argillaceous.-Rocks or substances composed of aceous material is probably of early Pleistocene ing porous zones. Association with suitable struc­ age but was mistaken for Tertiary coal-bearing ture also affects oil accumulation (Sloss and clay or having a notable proportion of clay in Concordant.-Contact of intrusive igneous body strata such as crop out at the "coal banks" at Laird, 1945). West of the Continental Divide, their composition. parallel to bedding or foliation of intruded rock. Coal Creek. however, the brecciated zone in basal Mississippi­ an rocks is thin, and upper Mississippian strata ArgilIite.-Rock conSisting of siltstone, claystone, Cross bedding or cross lamination.-Arrangement A peat deposit borders and probably under­ that might have been affected by pre-Jurassic or shale that has been to some extent recrystal­ of laminations or strata transverse or oblique lies a small lake south of U. S. Highway 93 about weathering are missing. Oil and gas possibilities lized by metamorphism. to major bedding (applies to granular sedi­ 1 Vz miles west of Whitefish. Peat in considerable in Paleozoic rocks within the map areas are prob­ ments) . amount occurs adjacent to a creek on the Walter ably poor, because of these factors and because Axial plane or axial surface.-An imaginary plane C. Robbin ranch 3 Vz miles south of Creston. of the shallow depth of burial of favorable reser­ or curved surface along and through the crests Current ripple mark.-Asymmetric ripple mark voir rocks. or troughs of successive beds involved in a fold. formed by current moving in one direction; has ASPHALTITE long, gentle slope in direction from which cur­ Oil seeps are present in the valley of the Bioclastic.-Fragmented by activity of organisms. A -inch dike of asphaItite was observed on rent comes and short steep slope on lee side; * North Fork Flathead River north and south of the the east side of Forest Service Trail 80 along Breccia.-Rock composed of angular fragments: as material moves up gentle slope and drops the South Fork Flathead River 2 to 2 Vz miles International Border. Several wells have been drill­ north of Black Bear Creek. The dike strikes N. ed on the basis of these seeps. contrasting to conglomerate, which is composed down steep slope, ripple migrates downwind of rounded or subrounded pebbles, cobbles, or or downstream. 74° W. and dips 74° S., and consists of very dark Trauerman (1943, p. 239) stated that in 1905 gray to black shale-like rock, which burns in the boulders. Dike.-Tabular intrusive igneous body cutting flame of a match. The dike is in Devonian light­ some oil was discovered in the North Fork of the across the structure of enclosing rock. gray fetid dolomite that weathers yellow brown; Flathead near Kintla Lake. American companies Calcarenite.-Limestone (or dolomite) made of the dolomite strikes N. 35° W. and dips 30° E. operating south of the International Border were sand-size particles of coral, shell, or grains de­ Dip.-Angle at which a bed or planar feature is rived by erosion from older limestone (or dolo­ Erdmann (1944) reported other dikes near the Kintla Lake Company and the Butte Crude inclined from horizontal. Company. The Flathead Petroleum, British Ameri­ mite) . the mouth of Mid Creek in sedimentary rocks of Discordant.-Contact of intrusive igneous body can Oil Company, and the Crows Nest Coal and probable Devonian age. Cast.-Substance filling hole formed by removal cutting across bedding or foliation of intruded Coke Company operated north of the border. Some of the original material. rock. OIL AND NATURAL GAS thin and light-colored oil of very high gravity was encountered in a well drilled by the Flathead Clastic.-Textural term for rocks composed of Facies.-Aspect of a sedimentary geologic unit, Oil and natural gas seepages have been re­ Petroleum Company. Test wells were drilled near fragmental material eroded from pre-existing including composition, grain size, fossil content, ported in the Bigfork-Creston area of Flathead rocks. color, etc. Valley by a few ranchers who encountered rare Kintla Lakes without discovering commercial gas seeps while drilling water wells. The seepages quantities of oil or gas. Colluvium.-Loose and incoherent deposits of Re- Fault.-Fracture or break along which the rock liS GEOLOGY AND MINERAL DEPOSITS, LINCOLN AND FLATHEAD COUNTIES REFEftENCES 161

Ferrel E-3 Gergen Creek G-17 Hannegan L-7 Gibbs, George, 1873, PhYSical geography of the pI oration of the Yellowstone and Missouri Riv­ Firefighter Mtn. 1-27 Getner placer J-8 Hansen A-14 northwestern boundary of the United States: ers: U. S. 40th Cong., 2d Sess., S. Ex. Doc. 77, Fishel F-13 Giant Sunrise H-2 Harris Creek J-9 Jour. Am. Geog. Soc., v. 3, p. 156-388. 74 p. Fish Lake D-17, G-19 Giefer Creek 1-33 Harrison Creek N-33 Gibson, Russell, 1934, Gold-quartz veins south of Helburn, Nicholas, Edie, M. J., and Lightfoot, Gor­ Libby, Montana: U. S. Geol. Survey Circ. 7, 25 p. don, 1962, Montana in maps: Research and En­ Fish Lakes B-7 Gildart Creek N-27 Hart Creek N-36 ---, 1948, Geology and ore deposits of the dowment Found., Montana State CoIl. (Boze­ Fisher Mtn. J-9 Gill Creek Q-31 Harvey Creek E-16 Libby quadrangle, Montana: U. S. Geol. Survey man), 84 p. Fisher River K-I0, K-14, K-15 Glacier Silver-Lead 1-6 Hash Mtn. J-25 Bull. 956, 131 p. Hobbs, S. W., Griggs, A. B., Wallace, R. E., and Fishtrap Lake N-ll Glacier View Mtn. E-23 HaskiII Creek G-22 Gibson, Russell, CampbelJ, Ian, and Jenks, W. F., Campbell, A. B., 1965, Geology of the Coeur d' Fitzsimmons Creek D-17 Glen Creek N-25 Haskill Mtn. L-19 1938, Quartz monzonite and related rocks of the Alene district, Shoshone County, Idaho: U. S. Fivemile Creek F-ll, F-12 Glen Lake B-14 Haskill Pass J-17, K-17 Libby quadrangle, Montana, and the effects on Geol. Survey Prof. Paper 478, 139 p. Flagstaff Mtn. G-5 Gloria L-7 Hathaway H-9 them of deuteric processes: Am. Jour. Sci., 5th Hunt, G. H., 1960, Time of intrusion of the Purcell Flat Creek D-l1, M-32 Goat Creek 0-36 Hay Creek C-20 ser.. v. 35, no. 209, p. 345-369. sills, southeastern British Columbia (abs.): Geol. Flathead fault K-29, L-30 Goat Mtn. H-2 Hayes Ridge K-5 Gibson, RusselJ, and Jenks, W. F., 1938, Amphibo­ Soc. America Bull., v. 71, no. 12, pt. 2, p. 1893. Flathead Lake L-23, L-24, N-24 Gold Creek C-9 Head Creek L-32 lization of sills and dikes in the Libby quadran­ Hunter, Frank, and Byrne, John, 1897, Ninth an­ Flathead-Lake County Line L-25, Golden West L-7 Helen Creek P-33, P-34 gle, Montana: Am. Mineralogist, v. 23, no. 5, nual report of the Inspector of Mines of the L-26, M-24 Gold Hill E-7 Hellroaring Creek C-2, D-17 p. 302-313. State of Montana: Helena, State Pub!. Co., 90 p. Flathead-Lincoln County line Gold King N-8 Hematite Peak K-32 Gibson, Russell, Jenks, W. F., and Campbell, Ian, ---, 1898, Tenth annual report of the Inspect­ C-17, J-14 Good Creek C-8, G-16 Hemler Creek 1-25 1941, Stratigraphy of the Belt Series in Libby or of Mines of the State of Montana: Helena, Flathead mine M-19 Goodrich Bayou 1-23 Hemlock Creek E-4 and Trout Creek quadrangles, northwestern State Pub. Co., 54 p. Flathead-Missoula-Powell Coun­ Gopher Hill G-I0 Hennessey Creek F-6 Montana and northern Idaho: Geol. Soc. Ameri­ ---, 1900, Twelfth annual report of the In­ ty line Q-32 Gordon Creek G-2 Henry Creek M-25 ca Bull., v. 52, p. 363-379. spector of Mines of the State of Montana: Gorge Creek 0-30, 0-32 Hensley Creek B-4 Helena, State Publ. Co., 91 p. Flathead-Powell County line Gilbert, F. C., 1935, Directory of Montana mining Government Creek L-5 Hensley Hill B-5 Johannsen, Albert, 1939, A description of the ig­ Q-35 properties: Montana Bur. Mines and Geology Government Mtn. L-4 Herbert 1-6 neous rocks, v. 1 and 3: Chicago Univ. Press. Flathead River H-23, 1-23, K-24, Mem. 15, 99 p. L-35 Granite Creek 1-6, K-33 Herrig Creek J-17 Johns, W. M., 1959, Geologic investigations in the Flathead-Sanders County line Granite Lake 1-5 Herrig Mtn. D-17 Gilmour, E. H., 1964, Geology of the southwestern Kootenai-Flathead area, northwest Montana: M-14 Grant Glacier 1-29 Herrig placer J-17 part of the Stryker quadrangle, northwestern No.1, western Lincoln County: Montana Bur. Flatiron Mtn. D-6 Grave Creek B-15 Hiatt Creek 1-2 Montana: Unpub. M. S. Thesis, Univ. Montana Mines and Geology Bull. 12, 56 p. Flattop Mtn. L-6 Gravel deposit J-22, J-23 Hidden Creek 1-4 (Missoula), 63 p. ---, 1960, Geologic investigations in the Koot­ Fleetwood Creek G-9 Graves Creek K-27 Highrock Creek P-31 Goddard, E. N., and others, 1951. Rock color chart: enai-Flathead area, northwest Montana: No.2, Fleetwood Point G-9 Great Bear Mtn. H-27 Hilburn Creek M-20 Dist. by Geol. Soc. America, 8 p. southeastern Lincoln County: Montana Bur. Flotilla Lake L-33 Great Northern Mtn. 1-28 Himes Creek M-9 Gruner, J. W., 1934, The structure of vermiculites Mines and Geology Bull. 17, 52 p. Flower Creek H-5, H-6 Great Northern Railway C-14, Hodag Creek P-33 and their collapse by dehydration: Am. Miner­ ---, 1961, GeologiC investigations in the Koot­ Foolsburg H-17 G-25, H-22 Hoerner C-3 alogist, v. 19, p. 557-575. enai-Flathead area, northwest Montana: No.3, Forest Creek K-28 Green Mtn. A-14 Hoke Creek K-29 Gu1brandson, R. A., Goldich, S. S., and Thomas, northern Lincoln County: Montana Bur. Mines Forrey Creek M-23 Gregg Creek G-16 Hoodoo Creek J-8 H. H., 1963, Glauconite from the Precambrian and Geology Bull. 23, 57 p. Fortine Creek C-14, D-15 Griffin Creek H-17, 1-17, J-17 Hoodoo Mtn. J-8 Belt Series, Montana: Science, v. 140, no. 3565, ---, 1962a, Geologic investigations in the Fourth of July Creek D-2, L-7 Griffith Creek B-14 Hoop Creek 0-36 p.390. Kootenai-Flathead area, northwest Montana: Fowler Creek C-6 Grizzly J-6 Hope fault L-3 Hall, F. W., 1962, Geology of the northwest Plea­ No.4, southwestern Flathead County: Montana Fox Mtn. G-16 Grizzly Point C-4 Hornet Creek B-20 sant Valley quadrangle, Montana: Unpub. M. S. Bur. Mines and Geology Bull. 29. 38 p. Foy Lakes J-21 Grob Lake A-12 Hornet Mtn. B-19 Thesis, Montana State Univ. (Missoula), 55 p. ---, 1962b. Belt Series in Lincoln and south­ Frank Creek H-25 Grouse Creek G-17, N-9 Hornet Ridge H-ll Hanson, A. M., 1952, Cambrian stratigraphy in west Flathead Counties, Montana: Am. Inst. Frank Lake C-14 Grouse Mtn. H-2 Horse Creek 1-6 southwestern Montana: Montana Bur. Mines Mining Engineers Trans., v. 226. p. 184-192. Freeland Creek M-20 Grubb Mtn. 1-16 Horse Hill 1-14 and Geology Mem. 33, 46 p. ---, 1964, Geologic investigations in the Koot­ Freeman Ridge G-3, H-3 Gunderson Creek N-26 Horse Hill Lookout 1-14 Harrison, J. E., and Campbell, A. B., 1963, Correla­ enai-Flathead area, northwest Montana: No.6, French Creek A-4, A-5 Gunsight Mtn. E-3 Horse Lakes D-7 tions and problems in Belt Series stratigraphy, southeastern Flathead County and northern Frozen Lake A-17 Gus Creek C-4 Horse Mtn. K-8 northern Idaho and western Montana: Geol. Soc. Lake County: Montana Bur. Mines and Geology Gable Peaks L-35 Hale Creek G-2 Horse Ridge M-31 America Bull., v. 74, p. 1413-1428. Bull. 42, 66 p. Galena Creek N-6 Halfmoon H-23, K-6 Horseshoe Lake L-12 Harrison, J. E., and Jobin, D. A., 1963, Geology of Johns, W. M., Smith, A. G., Barnes, W. C., Gil­ Garden Ridge E-8 Halfmoon Lake G-25 Hoskins Lake B-6 the Clark Fork quadrangle, Idaho-Montana: U. mour, E. H., and Page, W. D., 1963. Geologic Garnet Creek Q-32 Half Moon Slough J-23 Houghton Creek L-lO S. Geol. Survey Bull. 1141-K, p. 1-37. investigations in the Kootenai-Flathead area, Garnet Peak Q-32 Hall Creek M-28 Housley Creek M-26 Harrison, J. E., Reynolds, M. W., and K1einkopf, northwest Montana: No.5, western Flathead Garnier Creek H-23 Hallowat Creek E-21 Howard Creek K-7 M. D., 1969, Mineral resources of the Mission County and part of Lincoln County: Montana Garver Creek A-4 Hamilton Creek D-13 Howard Lake K-7 Mountains Primitive Area, Missoula and Lake Bur. Mines and Geology Bull. 36, 68 p. Garver Mtn. A-4 Hamilton Gulch K-3 Howard placer J-7 Counties, Montana: U. S. Geol. Survey Bull. Johnson, O. W., 1950, Story of the Tobacco Plains Gateway A-ll Hand Creek 1-16 Hoyt F-I0 1261-D, p. 1-48. country: Caxton Printers. Ltd., Caldwell, Idaho. Geiger Lakes L-7 Handkerchief Lake K-28 Hubbard Creek A-8 Hayden, F. V., 1869, Geological report of the ex- Keirn, J. W., and Rector, R. J., 1964, Paleozoic 162 GEOLOGY AND MINERAL DEPOSITS, LINCOLN AND FLATHEAD COUNTIES APPENDIX-ATLAS 167

rocks in northwestern Montana-A newly rec­ Kootenay district of British Columbia, in Petro­ Charlie Creek D-8, K·30 Crane Creek M-25, M-26 Doris Mtn. 1·25 ognized occurrence: Geol. Soc. America Bull., logic Studies-a volume in honor of A. F. Bud­ Chasm Creek P-32 Crater Mtn. K-26 Doris Ridge 1-25 v. 75, p. 575-578. dington: Geol. Soc. America, p. 241-280. Chepat Creek C-17 Crazyman Creek J-7 Double Lake 1·5, J·24 Kiilsgaard, T. H., 1951, Description of some ore Lindgren, Waldemar, 1904, A geological recon­ Cherry Creek J-6 Creston J -24 Drift Creek 1-2 deposits and their relationships to the Purcell naissance across the Bitterroot Range and Clear­ Chief Creek K-12 Crevice Lakes N-30 Drumming Creek K·35 sills, Boundary County, Idaho: Idaho Bur. Mines water Mountains in Montana and Idaho: U. S. Cripple Horse Creek G-ll Dry Fork Creek H-13 and Geology Pamph. 85, 32 p. Geol. Survey Prof. Paper 27, 123 p. Chimney Rock L-3 Cripple Horse Mtn. G-ll Duck Lake D-17 Kindie, E. M., 1908, The fauna and stratigraphy ---, 1918, The Idaho peneplain (disc.): Econ. China Creek G·5 of the Jefferson Limestone in the northern Geology, v. 13, p. 486-488. China Lake F-5 Cromwell Creek N·19 Dudley Creek D·14 Rocky Mountain region: Am. Paleont. Bull., v 4, Long, Austin, Silverman, A. J., and Kulp, J. L., China Mtn. F-5 Crosley·Sucetti H·17 Dunn Creek H-lO no. 20, p. 28-35. 1960, Isotopic composition of lead and Precam­ Chinese Wall Q·36 Cross Mtn. D-l Dunn Peak H-ll Kirkham, V. R. D., 1930, The Moyie-Lenia over­ brian mineralization of the Coeur d' Alene dis­ Chinook Lake G-19 Crossover Mtn. L·30 Dunsire Creek H -16 thrust fault: Jour. Geology, v. 38, p. 364-374. trict, Idaho: Econ. Geology, v. 55, p. 645-658. Chippewa Creek J·4 Crowell Creek 1·4 Dunsire Point H-16 Kirkham, V. R. D., and Ellis, E. W., 1926, Geology Lyden, C. J., 1948, The gold placers of Montana: Christopher Creek 0-36 Cruien Creek E·6 Duplex E-l and ore deposits of Boundary County, Idaho: Montana Bur. Mines and Geology Mem. 26, Church Slough K-23 Cruiser Mtn. L-36 East Branch E-8 Idaho Bur. Mines and Geology Bull. 10, p. 15-75. 152 p. Clack Creek M ·36 Crystal Creek G·23, K-I0 East Fisher Creek L·9, M-9, M-IO Konizeski, R. L., Brietkrietz, Alex, and McMurt­ MacDonald, D. F., 1906, Economic features of Crystal Lake L·12 East Fork Blue Creek K·2 rey, R. G., 1968, Geology and ground-water re­ northern Idaho and northwestern Montana: U. Clarence Creek A-16 Cy Creek K-32 sources of the Kalispell Valley, northwestern S. Geol. Survey Bull. 285, p. 41-52. Clark Fork River L-2 East Fork Dayton Creek M·22 Cyclone Creek D·2, D-21 Montana: Montana Bur. Mines and Geology Clark Mtn. C-4 East Fork Fisher Creek M·9 Mansfield, G. R., 1923, Structure of the Rocky Cyclone Lake D-22 Bull. 68, 42 p. Mountains in Idaho and Montana: Geol. Soc. Clay Creek D·5 East Fork Pentagon Creek N-36 Clay Mtn. D·5 Cyclone Peak D·22 Krynine, P. D., 1950, Microscopic morphology of America Bull., v. 34, p. 263-284. East Fork Whitefish Creek D·18 Clayton Creek J-27 Dad Creek G-5 quartz types: Second Panam. Congo Mining Eng. ---, 1924, Tertiary planation in Idaho: Jour. Clear Creek N -17 Dad Peak K-5 East Fork Yaak River A-6, A·7 and Geology, V. 3, p. 35-49. Geology, V. 32, no. 6, p. 472-487. Cleft Rock B-19 Daggett Creek G·16 Echo Creek K-25 Kujawa, R. J., 1942, Mineralogy and genesis of McGill, G. E., and Sommers, D. A., 1967, Strati­ Cliff Creek Q·35 Dahl Lake J·16, K·16 Echo Lake K-25 the vermiculite deposits at Libby, Montana: Un­ graphy and correlation of the Precambrian su­ Cliff Lake H-20 Damnation Creek P·34 Edna Creek E·13, E-14 pub. B. S. Thesis, Montana School of Mines pergroup of the southern Lewis and Clark Cliff Mtn. C-I0, Q·36 Daniel Lee 1-2 Egan Slough J-23 (Butte). Range, Montana: Geol. Soc. America Bull., V. Cliffside J·8 Darling placer 1·13 Elbow Creek J-16 Kuno, Hisashi, 1950, Petrology of the Harkone 78, p. 343-351. Coal Creek D·21 Davis Creek A-2, L·12 Elephant Peak K-6 volcano and adjacent areas, Japan: Geol. Soc. McKee, E. D., and Weir, G. W., 1953, Terminology Coal Ridge D·21 Davis Mtn. A-2, F-13 Elk Creek G-15, J·30, L-2, L-ll America Bull., V. 61, p. 957-1020. for stratification and cross-stratification in sedi­ Cody Creek 1·10 Dayton Creek N-22 Elk Creek fault L-2 Langstroth, W. T., 1964, Re-evaluation of the dis­ mentary rocks: Geol. Soc. America Bull., v. 64, Colbick Creek K-35 Deadfall Creek N·30 Elk divide G-15 turbed belt of Montana: Billings Geol. Soc., p. p.381-390. Colonite Creek M-I0 Dead Horse Creek E·22, K-2 Elk Lake J-32, N-9 1-7. McMurtrey, R. G., Konizeski, R. L., and Briet­ Columbia Falls H-23 Dean Creek N -35 Elk Mtn. G·15, 1-29, N-8 Larsen, E. S., Jr., Gottfried, David, Jaffe, H. W., krietz, Alex, 1965, Geology and ground-water re­ Combat Creek Q·31 Deep Creek C·15, F·23, 1-6 Elliott Creek J-8 and Waring, C. L., 1958, Lead-alpha ages of the sources of the Missoula Basin, Montana: Mon­ Comet placer J-7 Deer Creek J-12, L-2, M·33 Ellsworth Mtn. E-ll Mesozoic batholiths of western North America: tana Bur. Mines and Geology Bull. 47, 35 p. Coniff Creek J-15 Depuy Creek F-23 Emery Creek G-26 Emma Creek 1-3 U. S. Geol. Survey Bull. 1070-B, p. 35-62. Meinzer, O. E., 1916, Artesian water for irrigation Conn Creek E-4 DeRozier Creek A·13 Desert Mtn. G·26 Emmons Creek L-21 Latuszynski, F. V., 1962, Geology of the southwest in Little Bitterroot Valley: U. S. Geol. Survey Conn Mtn. E-4 Essex Creek 1-29 Pleasant Valley quadrangle, Montana: Unpub. Water-Supply Paper 400-B, p. 9-37. Conner Creek M-29 Detgen Creek J·8 Conrad Point L·23 Devil Club Creek K-5 Essex Mtn. 1·30 M. S. Thesis, Montana State Univ. (Missoula), Merriam, L. C., 1963, A land-use study of the Bob Continental Divide P·36 Devil Creek J -32 Estes Lake L-25 51 p. Marshall Wilderness Area of Montana: Montana Cool Creek C-4, N-ll Diamond John K-6 Esther May B-5 Leech, G. B., 1958, Fernie map area, west half, State Univ. (Missoula) Bull. 26, 113 p. Coon Hollow L-21 Diamond Peak D-19 Eureka B·13 British Columbia: Canada Geol. Survey Paper Montana, State of, 1933, Montana resources and Copeland D-7 Dickey Creek D-15 Everett Creek F -10 58-10, p. 1-40. opportunities edition: Montana State Dept. Ag­ Copeland Creek D· 7 Dickey Lake D·16 Evers Creek G-18 ---, 1959, The southern part of the Rocky riculture, Labor, and Industry, v. 7, no. 5, 127 p. Mountain trench: Canadian Mining and Metal!. Copeland placer D·7 Dirtyface Creek J·30 Fairview (Ranger Station) H-13 Mudge, M. R., 1965, Bedrock geologic map of the Bull., V. 52, p. 327-333. Copper Creek H-3 Doak Creek G· 7 Fairway Creek 1·2 ---, 1960, Geology, Fernie west half, Kootenay Sawtooth Ridge quadrangle, Teton and Lewis Copper Gulch K-4 Dodge Creek A·I0 Falls Creek H·3, H·4 district, British Columbia: Canada Geol. Survey and Clark Counties, Montana: U. S. Geol. Sur­ Copper King H-17 Doe Creek 1-9 Fat Man Mtn. K·2 Map 11-1960. vey Geol. Quad. Map. 381. Copper Mtn. H-3 Dog Creek A-6 Fawn Creek 1·9, 1-25 Leech, G. B., Lowdon, J. A., Stockwell, C. H., and ---, 1966a, Geologic map of the Glenn Creek Copper Reward J-6 Dog Lake F-18 Fawn Lake 1·25 Wanless, R. K., 1963, Age determinations and quadrangle, Lewis and Clark and Teton Coun­ Corporal Creek N ·33 Dog Mtn. E-18 Feather Creek 0-31 geological studies: Canada Geo!. Survey Paper ties, Montana: U. S. Geol. Survey Geol. Quad. County airport 1-22 Dolly Varden Creek L-35 Feeder Creek E-3 63-17, 140 p. Map 499. Cove Creek 1-25 Dome Mtn. H-4, H-5 Feeder Mtn. E·4 Leech, G. B., and Wanless, R. K., 1962, Lead-iso­ ---, 1966b, Geologic map of the Pretty Prairie Cow Creek J-ll Donaldson Creek M·21 Felix Creek H-3, J-29 tope and potassium-argon studies in the East quadrangle, Lewis and Clark County, Montana: Cox Creek L-36 Doris Creek 1-25 Fennon Slough K-24 166 GEOLOGY AND MINERAL DEPOSITS, LINCOLN AND FLATHEAD COUNTIES REFERENCES 163

Ashley Creek J-18, J-22, K-19, Big Creek Lookout F-22 Boyd Creek B-5 U. S. Geo!. Survey Geo!. Quad. Map 454. Idaho: U. S. Geo!. Survey Prof. Paper 62, 203 p. L-18 Big Draw 0-19 Bradley Creek K-33 ---, 1966c, Geologic map of the Patricks Basin Rector, R. J., 19f13, Geologic appraisal of the Fish­ Ashley Lake J-18 Big Eight 1-12 Bramlet Creek L-7 quadrangle, Teton and Lewis and Clark Coun­ trap Creek bUIlding stone belt, Sanders County, Ashley Mtn. 1-17 Big Eight mine G-2 Branch Creek M-29 ties, Montana: U. S. Geo!. Survey Geo!. Quad. Montana: Northern Pacific Railway Co. Geol. Map 453. Aster Creek A-2 Big Foot Creek F-5 Bridge Creek A-8 Division Geo!. Map and Text. Aurora Creek H-25 Bigfork L-25 Bridle Creek E-4 Mudge, M. R., Sando, W. J., and Dutro, J. T., Jr., Reid, R. R., and Greenwood, W. R., 1968, Multiple Backus Creek 1-12 1962, Mississippian rocks of Sun River Canyon deformation and associated progressive poly­ Big Four M-21 Briery Creek E-ll area, Sawtooth Range, Montana: Am. Assoc. Badrock Canyon H-24 metamorphism in the Beltian rocks north of the Big Hoodoo Mtn. J-7 Briggs Creek M-16 Petroleum Geologists Bull., v. 46, p. 2003-2018. Idaho batholith, Idaho: Paper submitted for pre­ Bailey Lake G-24 Big Lost Creek 1-19 Brimstone Creek D-15 Nelson, W. H., and Dobell, J. P., 1961, Geology of sentation at 23d Internat. Geol. Cong., Prague, Baker Gulch K-3 Big Mtn. F-21 Bristow Creek F-9 the Bonner quadrangle, Montana: U. S. Geo!. Czechoslovakia, 18 p. Bald Eagle Mtn. K-6 Big Rock Creek N-14, N-15 Broken Leg Mtn. L-27 Survey Bull. lll1-F, p. 189-235. Reyner, M. L., and Trauerman, C. J., 1950, Direct­ Baldhead Mtn. J-33 Big Salmon Creek Q-33 Brooks Creek M-17 Nobles, L. H., 1952, Glacial geology of the Mission ory of Montana mining properties, 1949: Mon­ Big Salmon Lake Q-33 Bald Mtn. A-17, J-20 Brown Creek J-25 Valley, western Montana: Ph.D. Dissert., Har­ tana Bur. Mines and Geology Mem. 31, 125 p. Baldy Creek C-3 Big Sky J-6 vard Univ., 154 p. Browns Creek 1-19 Rezak, Richard, 1957, Stromatolites of the Belt Bales Creek L-20, L-21 Billiard Table K-2 Northern Pacific Railway Company, 1959, Photo­ Series in Glacier National Park and vicinity, Browns Meadows L-19 Ball Creek M-28 Bimetallic H-3 geologic interpretation map showing a portion Montana: U. S. Geol. Survey Prof. Paper 294-D, Banfield Mtn. F-8 Birch Creek L-26 Bruce Creek N-30 of Flathead, Lincoln, and Sanders Counties, 154 p. Bany Lake 1-20 Birdseye M-19 Brulee Creek K-9 Montana, and Bonner County, Idaho, sheet 7: Ross, C. P., 1949, The Belt problem (abs.): Wash­ Black Bear Creek 0-33 Brush Creek G-2, H-15, J-9 Barnaby Lake C-14 E. J. Longyear Co., Minneapolis. ington Acad. Sci. Jour., v. 39, no. 3, p. 111-113. Barnum Creek K-12 Black Diamond E-2 Brush Mtn. J-9 Page, W. D., 1963, Reconnaissance geology of the Barren Peak L-9 Black Lake B-12 Brush Pass H-15 ---, 1956, The Belt Series in relation to the north quarter of the Horse Plains quadrangle, Barron Creek F-9 Blacktail G-17 Buck Creek 1-9 problems of the base of the Cambrian System: Montana: Unpub. M. S. Thesis, Univ. Colorado, Bartlett E-l Blacktail Creek A-7, A-14 Buckhorn Mtn. B-1 Internat. Geol. Cong., 20th, Mexico 1956, p. 66 p. Bar Z Peak M-14 Blacktail Mtn. L-21 Bug Creek M-26 683-699. Basin Creek A-8, F-14, L-4, M-37 Blacktail Mtns. M-21 Bull Creek G-7, L-3 Pardee, J. T., 1910, The glacial lake Missoula: Jour. ---, 1959, Geology of Glacier National Park Bassoo Creek N-17 Blacktail Peak M-I0 Bull Lake 1-3, J-3 Geology, v. 18, no. 4, p. 376-386. and the Flathead region, northwest Montana: Battery Mtn. L-29 Black Top A-3 Bull Lake divide J-3 ---, 1942, Unusual currents in glacial lake U. S. Geo!. Survey Prof. Paper 296, 121 p. Battle Butte N-19 Blaine Mtn. 1-24 Bull River J -4, L-3 Missoula: Geo!. Soc. America Bull., v. 53, p. ---, 1963, The Belt Series in Montana: U. S. Battle Butte Mtn. N-18 Blanchard Lake H-21 Bungalow Mtn. 0-36 1569-1599. Geo!. Survey Prof. Paper 346, 119 p. Bayhorse Creek M-I0 Blessed Creek F -16 Bunker Creek N-30 ---, 1950, Lake Cenozoic block faulting in Ross, C. P., Andrews, D. A., and Witkind, I. J., Beacon Mtn. M-31 Blind Creek C-3 Burell Creek G-5 western Montana: Geo!. Soc. America Bull., v. 1955, Geologic map of Montana: U. S. Geol. Bear G-2 Bluebird A-14 Burma Road A-13, A-14 61, p. 360-404. Survey Geo!. Map. Bear Creek 1-32, J-6, J-31, N-9, Bluebird Creek A-15 Burnt Creek D-3 Pardee, J. T., and Larsen, E. S., 1929, Vermiculite Ross, C. P., and Rezak, Richard, 1959, The rocks N-31 Blue Grouse J-17 Burro Creek B-I0 in Rainy Creek district, near Libby, Montana: and fossils of Glacier National Park: The story Beardance M-25 Blue Mtn. G-8 Butler Creek H-lO U. S. Geo!. Survey Bull. 805, p. 19-26. of their origin and history: U. S. Geo!. Survey Bearfite Creek D-6 Blue Sky Creek B-16 Cable Creek K-6 Peale, A. C., 1873, Progress report on portions of Prof. Paper 294-K, p. 401-438. Bear Lakes M-7 Bob Creek H-5 Cadette Creek C-ll Montana, Idaho, Wyoming, and Utah, in Hay­ Rowe, J. P., 1906, Montana coal and lignite de­ Beartrap Mtn. C-ll Bob Marshall Wilderness deposit Callahan Creek G-2 den, F. V., ch. 6: U. S. Geo!. Survey Sixth Ann. posits: Montana State Univ. (Missoula), Bull. 37, Beaver Creek C-6, E-14, E-19, 0-34 Calyx Creek J-12 Rept. of Terr., p. 167-187. ser. 2,82 p. N-33 Bobtail Creek F -6, G-6 Calyx Mtn. J-12 ---, 1893, The Paleozoic section in the vicinity Beaver Lake G-20 Bohannon Creek N-25, N-26 Camp Bells M-21 of Three Forks, Montana: U. S. Geo!. Survey Ruppel, E. T., 1963, Geology of the Basin quad­ Beetle Creek A-3, B-3 Boiling Spring Creek M-13 Camp Creek 1-4, N-32 Bull. llO, 56 p. rangle, Jefferson, Lewis and Clark, and Powell Bench Creek M-9 Boisverts Camp L-15 Camp Kootenai M-20 ---, 1896, Description of the Three Forks Counties, Montana: U. S. Geol. Survey Bull. Benefield Creek A-5 Bold Peak M-16 Camp Tuffet M-21 sheet: U. S. Geo!. Survey Geol. Atlas Folio 24. 1151, 121 p. Bent Creek M-32 Bolyard placer K-7 Cannon Creek P-31 Perry, E. S., 1948, Talc, graphite, vermiculite, Russell, L. S., 1954, The Eocene-Oligocene transi­ Bergsicker Creek K-30 Bond Creek M-28 Canoe Gulch H-9 and asbestos in Montana: Montana Bur. Mines tion as a time of major orogeny in western Berray Creek J-3 Bonnet-Hoerner C-13 Canuck A-2 and Geology Mem. 27, p. 24-28. North America: Royal Soc. Canada Trans., v. Beta Creek 1-25 Boorman Creek J-20 Canuck Peak A-I Pettijohn, F. J., 1949, Sedimentary rocks: Harper 48, sec. 4, p. 65-69. Beta Lake 1-25 Boorman Peak J-19 Canyon Creek F-23, G-ll, P-31 & Bros., New York, p. 1-507. ---, 1955, Additions to the molluscan fauna of Betts Lake 1-13 Bootjack Lake G-19 Caribou Creek A-8 Price, R. A., 1962, Fernie map area, east half, Al­ the Kishenehn Formation, southeastern British Betty Mae L-7 Boulder Creek B-9 Caribou Peak A-7 berta and British Columbia: Canada Geol. Sur­ Columbia and adjacent Montana: Natl. Mus. Beulah Creek D-6 Boulder Hill 1-13 Carney Creek G-9 vey Paper 61-24,62 p. Canada Bull. 136, p. 102-119. Bierney Creek L-22 Boulder Mtn. C-8 Castle Rock M-16 Ransome, F. L., 1905, Ore deposits of the Coeur d' Sahinen, U. M., 1946, A report on the Gold Hill Big Bill Creek M-33 Boundary Mtn. G-12 Cayuse Creek E-13 Alene district, Idaho: U. S. Geol. Survey Bull. group of mining claims, Cabinet mining district, Big Creek C-8, F-22 Bowen Creek G-15 Cedar Creek F-14, G-24, H-5, 260, p. 274-303. Lincoln County, Montana: Private rept., 5 p. Big Creek Baldy Mtn. E-7 Bowers Peak L-13 N-32 Ransome, F. L., and Calkins, F. C., 1908, Geology Sandvig, R. L., 1947, General geology of mines in Big Creek Extension C-8 Bow Lake N-22 Chair Mtn. L-35 and ore deposits of the Coeur d' Alene district, northwestern Montana: Unpub. B. S. Thesis, 164 GEOLOGY AND MINERAL DEPOSITS. LINCOLN AND FLATHEAD COUNTIES APPENDIX-ATLAS 165

Montana School of Mines (Butte), 72 p. of the Whitefish Range, Flathead and Lincoln cordilleran formations: Smithsonian Misc. 3, p. 285-286. Schofield, S. J., 1914a, The Precambrian (Beltian) Counties, Montana: Unpub. M.S. Thesis, Mon­ Colln., v. 67, no. 1, p. 1-8. Willis, Bailey, 1902, Stratigraphy and structure, rocks of southeastern British Columbia and tana State Univ. (Missoula), 44 p. ---, 1917b, Albertella fauna in British Colum­ Lewis and Livingston Ranges, Montana: GeoI. their correlation: Canada Geol. Survey Bull. 2, Toepfer, P. H., 1952, The Moose Hill mine (tung­ bia and Montana: Smithsonian Misc. ColIn., v. Soc. America Bull., v. 13, p. 305-352. Geol. Ser. 16, p. 79-9l. sten) , Lincoln County, Montana: Private report 67, no. 2, p. 1-61. Wilmarth, M. G., 1925, The geologic time classifi­ ---, 1914b, The origin of granite (micropeg­ submitted to J. C. Forkner, 5 p. Wallace, R. E., and Hosterman, J. W., 1956. Recon­ cation of the United States Geological Survey matite) in the Purcell sills: Canada Geol. Sur­ Trauerman, C. J., Earhart, R. H., and Eggleston, naissance of western Mineral County, Montana: compared with other classifications, accom­ vey Bull. 2, Geol. Ser. 13, p. 1-32. E. B., 1943, Directory of Montana oil and gas in­ U. S. Geol. Survey Bull. 1027-M, p. 575-612. panied by the original definitions of era, period, ---, 1915, Geology of the Cranbrook map dustry: Montana Bur. Mines and Geology Mem. W.alsh, William, and Orem, William, 1906, Biennial and epoch terms, a compilation: U. S. Geol. Sur­ area, British Columbia: Canada Geol. Survey 22, 291 p. report of inspector of mines: Independent PubI. vey Bull. 769, 138 p. Mem. 76, p. 1-69. Twenhofel, W. H., 1937, Terminology of the fine­ Co., Helena, 166 p. ---, 1938, Lexicon of geologic names of the Schrader, F. C., 1911, Gold-bearing ground mor­ grained mechanical sediments: Natl. Research ---,1908, Biennial report of inspector of mines: United States: U. S. Geol. Survey Bull. 896, aine in northwestern Montana: U. S. Geol. Sur­ Council, Ann. Rept. 1936-37, App. I, Rept. Independent Publ. Co., Helena, 52 p. 2396 p. vey Bull. 470-B, p. 62-74. Comm. Sedimentation, p. 81-104. ---, 1910, Biennial report of inspector of mines: Wilson, R. A., Lambert, G. S., and Clapp, C. H., Shelden, A. W., 1961, Geology of the northwest Umpleby, J. B., 1912, An old erosion surface in Independent Publ. Co., Helena, 130 p. 1924, Belt Series in Montana (abs., with discus­ 15-minute Ural quadrangle, Lincoln County, Idaho: its age and value as a datum plane: ---,1912, Biennial report of inspector of mines: sion by Edward Sampson): Geol. Soc. America Montana: Unpub. M. S. Thesis, Montana State Jour. Geology, v. 20, p. 139-147. Independent Publ. Co., Helena, 128 p. BulL, v. 35, p. 91. College (Bozeman), 63 p. ---, 1913, Geology and ore deposits of Lemhi Wampler, J. M., and Kulp, J. L., 1964, An isotopic Wolle, M. S., 1963, Montana pay dirt, a guide to Shenon, P. J., and Taylor, A. V., Jr., 1936, Geology County, Idaho: U. S. GeoI. Survey Bull. 528, study of lead in sedimentary pyrite: Geochim. mining camps of the Treasure State: Sage Books, and ore occurrence of the Hog Heaven mining 182 p. et Cosmochim. Acta, v. 28, p. 1419-1458. Denver, p. 290-310. district, Flathead County, Montana: Montana U. S. Geological Survey, 1969, Aeromagnetic map Watson, R. A., 1953, Moose Hill tungsten prospect, Wood, Herbert, 1892, Flathead coal basin, Mon­ Bur. Mines and Geology Mem. 17, 26 p. of the Libby and Mt. Pend Oreille quadrangles, Cabinet mining district, Lincoln County, Mon­ tana: Eng. Mining Jour., v. 54, no. 3, p. 57. Shepard, F. P., 1922, The structural relations of Lincoln and Sanders Counties, Montana, and tana: Private report submitted to Great Northern ---, 1892, Fissure veins in the Cabinet anti­ the Purcell Range and Rocky Mountains of Can­ Bonner County, Idaho: U. S. Geol. Survey Railway Co., 2 p. clinal, Libby, Montana: Eng. Mining Jour., v. ada: Jour. Geology, v. 30, p. 130-139. Geophys. Inv. Map GP 682. Weed, W. H., 1899, Little Belt Mountains, Mon­ 54, no. 26, p. 605. ---, 1926, Further investigations of the Rocky ---, 1969, Aeromagnetic map of the Thomp­ tana: U. S. GeoI. Survey Geol. Atlas, Folio 56, Young, F. M., Crowley, F. A., and Sabinen, U. M., Mountain trench: Jour. Geology, v. 34, p. 623- son Lakes quadrangle, Lincoln, Sanders, and 11 p. 1962, Marketing problems of small-business en­ 641. Flathead Counties, Montana: U. S. Geol. Survey ---,1900, Geology of the Little Belt Mountains, terprises engaged in lead and zinc mining: Mon­ Sloss, L. L., and Laird, W. M., 1945, Mississippian Geophys. Inv. Map GP 683. Montana: U. S. Geol. Survey 20th Ann. Rept., pt. tana Bur. Mines and Geology Bull. 30, 58 p. and Devonian stratigraphy of northwestern ---, 1969, Aeromagnetic map of the McGre­ Montana: U. S. Geol. Survey Oil and Gas Inv. gor Lake-Tally Lake area, Flathead and Lincoln Prelim. Chart 15. Counties, Montana: U. S. Geol. Survey Geophys. ---, 1947, Devonian system in central and Inv. Map GP 684. APPENDIX northwestern Montana: Am. Assoc. Petroleum ---1969, Aeromagnetic map of the Thompson Coordinates for finding on maps (PI. 1-3) places mentioned in this report. Geologists Bull., v. 31, p. 1404-1430. Falls quadrangle, Lincoln and Sanders Counties, Smith, A. G., 1963, Structure and stratigraphy of Montana: U. S. Geol. Survey Geophys. Inv. Map To find any mine, peak, lake, or other named numbers 14-25 on Plate 2, and numbers 26-37 on the northwest Whitefish Range, Lincoln County, GP 686. feature mentioned in this report and included Plate 3, in sequence from left (west) to right Montana: Unpub. Ph.D. Dissert., Princeton ---, 1969, Aeromagnetic map of the Hubbart in the mapped area, first find the name in the (east) across the top margin of the maps. The Univ., 151 p. Reservoir-Hot Springs area, Sanders, Flathead, letter part of the letter-number combination desig­ ---, 1968, The origin and deformation of some and Lake Counties, Montana: U. S. Geol. Survey alphabetical listing that follows, then note the nates a horizontal (east-west) row of 5-minute "molar-tooth" structures in the Precambrian Geophys. Inv. Map GP 687. letter-number coordinate after the name. Exten­ rectangles, as marked down the side of each map, Belt-Purcell supergroup: Jour. Geology, v. 76, ---, 1969, Aeromagnetic map of the Plains, sive features such as rivers may have two or more starting with A at the top (north). p. 426-443. Perma, Superior, and Tarkio quadrangles, San­ coordinates. As an example of the use of the system, Link Smith, A. G., and Barnes, W. C., 1966, Correlation ders, Mineral, and Missoula Counties, Montana: The number part of the letter-number com­ Lake has the coordinates C-19. As 19 is between and facies changes in the carbonaceous, cal­ U. S. Geol. Survey Geophys. Inv. Map GP 691. bination designates a vertical (north-south) row 14 and 25, Link Lake is on Plate 2. On Plate 2, careous, and dolomitic formations of the Pre­ Van Zandt, F. K., 1966, Boundaries of the United of 5-minute rectangles, which are outlined on the then, Link Lake can be found in the rectangle that cambrian Belt-Purcell group: Geol. Soc. Ameri­ States and several states: U. S. Geol. Survey maps, and also indicates indirectly which map is in the vertical row numbered 19 and in the ca Bull., v. 77, p. 1399-1426. Bull. 1212, 291 p. includes that row. Numbers 1-13 are on Plate 1, horizontal row lettered C. Sommers, D. A., 1961, Geology of the northeast W,alcott, C. D., 1899, Precambrian fossiliferous for­ 15-minute Ural quadrangle, Lincoln County, mations: Geol. Soc. America Bull., v. 10, p. 199- Abbot Creek H-25 Alder Creek G-16, 1-10 American Creek A-2 Montana: Unpub. M.S. Thesis, Univ. Rochester, 244. Abbot Lake K-25 Alexander Creek H-9 American Kootenai L-7 52 p. ---, 1906, Algonkian formations of northwest Abe Lincoln Mtn. D-3 Alexander Mtn. G-9 American Mtn. A-I Stermitz, Fr,ank, Hanly, T. F., and Lane, C. \V., Montana: Geol. Soc. America Bull., v. 17, p. Adams Mtn. F-17 Alkali Lake B-13 Anaconda Aluminum H-24 1963, Water resources, in Mineral and water 1-28. Addition Creek N -31 Allen Peak M-9 Angel Point M-23 resources of Montana: Montana Bur. Mines and ---, 1908, Cambrian sections of the Cordilleran Advent Creek F-16 Almeda Lake 1-29 Antley Creek B-18 Geology Spec. Pub. 28, p. 137-166. area: Smithsonian Misc. ColIn., v. 53, p. 167-230. Ajax placer N-8 Alora Creek 1-25 Arbo Mtn. E-4 Sweeney, G. L., 1955, A geological reconnaissance ---, 1917a, Nomenclature of some Cambrian Akinkoka Creek B-19 Alpha Creek 1-25 Argosy Creek M-35 Alcove Creek 0-30 Alpha Lake 1-25 Argosy Mtn. L-35 APPENDIX-ATLAS 169 11$ GEOLOGY AND MINERAL DEPOSITS, LINCOLN AND FLATHEAD COUNTIES

Hubbard Lookout M-17 Keno Mtn. B-1 Libby Creek K-6 Hubbart Reservoir M -17 Kerr Mtn. M-21 Libby Creek Gold Mining Co. Huckleberry Mtn. E-12 Kessler Flats L-19 placer K-7 Humdinger G-18 Ketowke Mtn. E-17 Libby placer K-7 Hunger Creek M-25 Kila K-20 Liberty Metals H-3 Hungry Creek P-32 Kilbrennan Creek E-3 Lick Mtn. A-6 Lightning Peak J -11 o Hungry Horse H-25 KiIbrennan Lake E-3 ·c"Mlt""J1"'-4M,....,,-ILnO':lN-.:::t'4t'-- :gr-:C'l~r-:~~~~~C! Kimmerly Creek F-23 Lime Butte H-3 MM""'<.DC"IOOOOOOO Table 5.-Production of gold and silver from Hungry Horse Creek H-27 ~ N M N placer operations, 1906-64, Lincoln Coun­ Hungry Horse Mtn. H-27 Kingsley Creek D-l Lime Creek E-15, N-35 e tyl/ Hungry Horse Reservoir H-25, Kirkpatrick 1-13 Lincoln-Flathead County line ·gc::;~~~~g:~~~~ Operating Ground Gold Silver Total E-15 :!:d~OC'iO-1C"i-1MO Year placers placered (yd.) (fine oz.) (fine oz.) value 1-26, K-29, L-30 Klatawa Lake 1-5 Nt- .-. Ibex Creek J-5 Kletomus Creek E-21 Lincoln-Sanders County line J-3, e 19062 332 $ 6,657 J-5 1907 268 5,358 Ibex Peak J-4, J-5 Kohler Lake K-24 ·~~l;;~n:~§SR~8- 1908 2 198.2 4,097 Line Creek A-8, A-9 ~cD.nONOOM""';~O Inch Mtn. D-I0 Koopee Creek B-18 N to ...... 1909 1 110 2,198 Link Lake C-19 e 1910 2 93 1,863 Independence A-14 Koot Creek G-4 Lion Hill H-25 1911 3 189 17 3,788 Independence Creek D-3 Kootenai Falls G-4 1912 3 243 15 4,859 Lion Lake H-25 1913 3 5 101 Independence Mtn. D-4 Kootenai River E-1, F-2, F-10 1914 1 2 37 Independence Peak A-14 F-ll, G-6, H-lO Lion Mtn. G-21 co 1915 6 126 2.527 ~OI.COO Indian Creek A-13, A-14, B-13 Kopsi Creek B-17 Lion Springs L-I0 MMCONIt) 1916 5 1 23 Kotschevar H-3 ListIe Creek H-16 ;.oicD~cD 1 74.6 6 1,493 Indian Peak E-5 "" l() .... 1917 1918 1 3 59 Ingalls Mtn. H-16 Krause Creek J-25 Little Bitterroot Lake K-17 1919-20 Inspiration Creek 0-30 Ksanka Peak A-14 Little Bitterroot River L-17, 1921 2 16 325 Irish Boy L-7 LaBeau Creek F-17 M-17, N-17, 0-lS 1922-23 Lakalaha Creek F-22 Little Cherry Creek J-7 1924 3 26 519 Iron Creek H-2 1925·28 Iron Mask H-3 Lake Blaine J-24 Little Creek D-3, N-31 1929 2 10 208 Iron Meadow Creek M-8 Lake Creek H-3, L-7, L-33 Little Hoodoo Mtn. 1-7 1930 4 13 258 Isabella Creek K-6 Lake Five G-25 Little Ibex Peak J-5 1931 3 1.000 61 1,204 Lake Geneva A-9 Little Meadow Creek M-18, N-17 1932 7 118 2,278 Island Lake J -14 1933 8 186.9 17 6,358 Jackson Creek G-I0 Lake Mary Ronan M-21 Little North Fork C-9 1934 18 49.67 6 1.740 Jager C-16 Lake Mary Ronan Lodge M-21 Little Pattie F-5 1935-36 Java Creek J -30 Lake Monroe K-19 Little Salmon Creek Q-30, Q-31 , 1937 4 153.2 13 5,360 Lake Mtn. C-19 Q-33 3 17 9,496 Jennings H-9 1938 9 297 Little Sutton Mtn. D-ll 19393 7 1,100 13 455 Jessup Mill pond J-24 Lake of the Woods K-25 1940 8 10.5 7 370 Jim Creek E-15 Lake Rogers L-IS Little Tom Mtn. F-6 1941 Johnson Creek A-19, L-26 Lakeside L-23 Little Wolf Creek 1-13 1942 8 41 2 1,435 Lodgepole Creek K-35 560 Johnson Draw H-9 Lake West G-25 1943 2 16 Lodgepole Mtn. K-35 1944 2 11 385 J ohnson Lake K-25 Lang Creek K-31 1945 2 7 525 Johnson Peak G-17 Langford Creek E-23 Logan Creek G-19, H-lS, K-29 1946 2 19 665 July Creek G-2 Langford placer D-23 Logan Lake E-18 1947 1 15,680 195 11 6,810 Jumbo L-7, M-21 Lap Creek B-5 Lolo Creek N-25 1948·51 Lone Butte P-35 1952 1 4 140 J umbo Peak M-9 Larch Creek N-32 1953·56 Jungle Creek A-3 Larue-Cripe C-5 Lone Lake K-18 1957 4 140 Kah Mtn. L-29 Last Chance H-2 Long Meadow G-19 1958 90 8 280 Kalispell J-22 Late Creek 0-31 Long Lake C-14 1959·64 Kalispell Bay L-23 Late Lake 0-31 Lookout Creek D-S Total 17,870 2,904.07 109 $72,571 Kavalla Creek 1-13 Lawrence Mtn. E-8 Loon Lake D-14, E-5, K-ll, L-ll 1/ Complied from "Mineral Resources of the United States" and Kedzie Creek F-4 Lazier Creek N-12 Loon Peak E-5 "Minerals Yearbook". 2/ Production figures from " Inspector of Mines Report" , 1908. Keeler Creek H-2 Lazy Creek F -19 Lost Creek H-19, 1-19, 1-20, N-27 3/ From Montana Bureau of Mines and Geology Mem. 26. p. 76 and 80. Keeler Mtn. 1-3 Leigh Creek J-6 Lost Creek divide 1-18 Keith Mtn. F-17 Leigh Lake J-6 Lost Fork Creek E-5 Kelsey Creek C-6 Leonia E-l Lost Girl Creek K-5 Kenelty E-I0 Leonia fault F-l Lost Horse Mtn. C-7, L-6 Kenelty barite L-ll Lewis and Clark-Flathead Coun­ Lost Jack Creek N -33 Kenelty Mtn. K-IO ty line N-37 Lost Johnny Creek 1-26 Kennedy H-9 Lewis Creek Q-34 Lost Lake C-13, L-13 Kennedy Gulch H-S Libby H-7 Lost Soul Mtn. F-S 170 GEOLOGY AND MINERAL DEPOSITS, LINCOLN AND FLATHEAD COUNTIES CHEMICAL ANALYSES 175

Louis Creek E-16 Middle Fork Flathead River Murphy Lake D-15 0 0 0 00 LO 0 00 t-- -.:t: "'! -.:t: ~ Lower Cedar Lake H-5 G-25, G-27, H-29, H-30, 1-30 Murphy Mtn. D-1

Lower Twin Creek L-31 Mid Lake K-26 Murr Creek M-14 0 "N Lupine Lake 1-17 Miller placer L-S Nanny Creek M-32 ";'00 ~ Lydia Creek D-12 Mineral Mtn. F-12 Napoleon Gulch K-3 Z ...... Miner Creek L-33 0 t-- ...... 0 m M Lydia Mtn. D-12 Nelson Creek G-17 ~ "'! N ~ OJ ~ -; c>1t:) 0 Lr5 Lynch Lake J-14 Minor Lake H-5 New Morning Glory D-3 ..:.1'- ;:l Lynx Creek G-3 Mitchell 1-24 Newton Mtn. D-2 0 0 0 0 0 0 Lynx Creek talc G-4 ~ 0 Moen A-13 Niarada 0-IS N ~ ~ "'! Lyons Gulch N-8 ~o r-: ...... - Montana Morning G-2 ~oo - Madge Creek 1-4 Nicola Creek F-21 - Montana placer J-7 Ninko Creek B-1S '" Magnesia Creek E-15 0 0 0 0 CI) 0 Montezuma L-S Q .... 10 ~ N s:: I{) Mandy Gulch N-15 No Creek 1-6 ~~ r-: ...... 0 0 0 III 00 t:: Mantrap Fork Creek N-ll Moonlight H-17 Noisy Creek K-26 ..l Marion K-IS Moose Creek B-20, C-19, J-32 Nokio Creek A-17 <> 0 0 00 Marion Lake 1-29 Moose Lake E-21, J-32 North Branch East Fork K-5 .... 0 m "'! - . 0 Marl Lake D-14 Moose Peak E-20, N-I0 North Creek B-2, B-3 ~;) - Marmot Mtn. P-32 Moran Creek D-21 North Fork Big Creek C-7 "" ., 0 North Fork Bull River J-4 ...... 0 0 0 Q) 0 Marten Creek N-3 Moran Lake A-12 .,"'N . 0 "'! t:: ~ a) N 0 0 0 ------..... ~~ s:: Mathias Creek E-20 Mosher M-22 North Fork Helen Creek P-34 '"'<1> ... North Fork Jackson Creek G-9 U) Mauzey Creek M-25 Mother Lode L-7 ...... 0 0 Maxine Creek D-S Mt. Adams J-29 North Fork Keeler Creek H-2 Q) acM.... . ~ ~ '0'> Maxine Point D-8 Mt. Baldey B-2 North Fork Lost Creek N-28 '-' ~I'- McConnel Mtn. G-3 Mt. Baptiste K-30 North Fork Meadow Creek C-2 .....<1> ·N 0 0 McEwen G-7 Mt. Barnaby B-15 North Fork Murr Creek M-15 ..... ""'It:)"I' • N ",It:) N McGilvray Lake K-25 Mt. Berray K-4 North Fork O'Brien Creek F-3 CIS >01'- :;j'"' McGinnis Creek F-24, L-ll Mt. Creek M-19 North Fork Ross Creek J-2 0" '" McGovern Creek J-17 Mt. Conner 1-15 North Fork Seventeenmile Creek ., CIl .. 0 0 :;j ~~ ~ 0 ",0 McGregor Creek L-14 Mt. Fritz K-I0 E-4 <1> 00 Northwestern Lake 1-20 (.) >0 McGregor Lake L-15, L-16 Mt. Furlong J-31 CIS '" McGregor Peak L-16 Mt. Hefty A-19 Northwest Peak A-2 -·So ~o 0 - .. I'- No-See-Um Creek M-25, M-26 ~ McGuire Creek D-10 Mt. Henry B-7 '"'CIS e:,d McGuire Mtn. D-l1 Mt. Marstan C-16 Noxon M-4 >000 '"0s:: '" McKay M-5 Mt. Murray 1-2S Nugget placer J-S CIS 0 0 McKillop Creek K-11 Mt. Overmayer A-4 Nyack Mtn. H-2S C1l "gil ~! ~ ..... 'N McMillan Creek I-S Mt. Orvis Evans L-27 O'Brien Creek E-3, F-3 ·N.....,.. ~oo McMillan Mtn. I-S Mt. Petery C-16 O'Brien Mtn. F-5 CIS '" :;j McWenneger Slough J-23 Mt. Rogers K-ll Oettiker Creek H-18 0 0 co m 00 co N ...... I{) t-- " 0" ~ .... 00 " 1-17, N-12 Mt. Sterling 1-11 Oldtown K-7 CIl Q) Meadow Creek cabin 0-33 Mt. Swaney H-16 Ole M-18 CIl u Meadow Peak L-14 Mt. Thoma A-19 Olney F-19 >. C;; o<=> Micho G-22 Mt. Vernon J-3 Olson Creek J-25, M-S ~ - Midas K-7 Mt. View M-S O'Neil Creek J-19 I Midas Creek K-7 Mt. Warn A-16 Oreamnos Peak P-31 M Mid Creek 0-33 Mt. Young C-1S Oro G-l C1l Middle Fork D-9 Mud Creek C-14 Orr Creek L-5 ~ Middle Fork Creek 0-30 Mud Lake D-14, E-23 Orthorp Lake B-12 E-o Middle Fork Dayton Creek M-22 Mule Creek E-4 Otila Creek 1-25 174 GEOLOGY AND MINERAL DEPOSITS, LINCOLN AND FLATHEAD COUNTIES APPENDIX-ATLAS 171

00 Otis Creek C-3 Poverty Creek A-ll, B-ll Rollins N-23 ,,0) 10 ~~8~~ :.~ cr5 oci.nMN""; -10 ...... Owl Creek M-9, M-I0 Price L-6 Ronan Creek N-21 ~ Owl Peak M-9 Proctor N-22 Rooney Creek 0 -35 '" 00 000 o Packrat D-3 ON NOO 10 Prospect Creek 1-6 Roosville A-13 ...~ ...,a) M..... oci""; Payne Creek J-4 Rampike Creek A-3 Sales Lake A-12 ...,o '" Peacock H-17 Ramsey Creek K-6 Salt Mtn. P-36 o Pecolet Creek J -10 Rankin F-3 Sand Creek H-25 Pedro Creek 0-35 Ransome Creek F-5 Sanders Mtn. 1-15 II) C;;OCDOOO Peggy Creek Q-35 Raven L-IO Sanko G-18 MNCOI.(')LO... OON....;.n Pentagon Creek N-36 Raven Creek L-I0 Sanko cabin H-18 ~ I':MC'I"'" Pentagon Mtn. M-36 Razzle Creek 0-31 Sanko Creek G-17 Pete Creek B-4 Redemption Ridge 1-12 Sarah Creek 0-32 Peterson A-14 Red Gulch placer J-7 Satire Mtn. K-11 Peterson Lake K-25 Red Head Peak P-36 Savage Lake G-4 Pheasant Creek C-4 Red Meadow Creek C-20 Sawtooth Mtn. K-2 CDO ..... 00 Phil Creek Q-34 Redmond Creek N -16 Scalp Creek M-37 ON Phillips A-6 Red Mtn. B-9 Schafer Creek E-7, L-34 Picture Creek 0-32 Red Plume Mtn. K-34 Schafer Meadows L-35 o o 100 Pilgrim Creek M-3 Red Sky Mtn. K-30 Schrieber Creek K-8 00 00 z z z z z ..... LC o oci ~ ~ ~ ~ ON Pillick Ridge L-3 Red Top campground D-3 Schrieber Lake K-9 0) Pine Creek E-2, Q-34 ~ ~ ~ ~ Red Top Creek D-2 Screw Creek A-4 Pine Prarie L-17 Red Top Mtn. C-2 Seattle J-6 Pink Creek D-12 Reid Creek H-18 Second Chance D-I0 Pinkham Creek B-ll, C-12, D-12 Reid divide H-18, 1-19 Seek 1-24 Pinkham Mtn. E-12 Reid Peak H-18 Seemo Creek B-18 o o C'I Pinkham Patrol D-13 Reinshagen Gulch H-9 Seneca Creek 1-25 ...... ~ N Pink Mtn. D-7 Remp H-5 Seventeenmile Creek E-4 Pinto Mtn. D-8 Review Mtn. A-18 Severn Gulch H-8, H-9 o Pipe Creek F -7, G-6 Rexford B-ll Shaughnessy Creek 1-6 N N Pipe Creek divide D-6 Reynolds Lake D-5 Sheep Creek J-30 Pleasant Valley J-14, K-14, K-15 Rice Creek G-7 Sheepherder Creek D-5 ... Pleasant Valley Creek J-14 i:looooo 00000 Rice Draw L-3 Sheepherder Mtn. D-5 ..;.~",",oq~~ I'-LCLCC'I"" Pleasant Valley Fisher River :><1'-0':>1'-"""'" ~t-= 0 M .n 0 CD Plume Creek G-16 Riverview Mtn. 1-10 Shine Creek C-3 '" Plummers Lake J-24 Roaring Creek L-34 Shorty Creek C-18 Point Caroline L-23 Roberts Creek C-7 Shroder Creek M-14, N-15 Pondera-Flathead County line Robertson Creek G-15 Shroder Creek fault N-15, N-16 K-36 Robinson Creek A-8 Sieminski Creek D-12 Pony Mtn. H-2 Robinson Mtn. A-9 Silver Butte M-7 Poole Lake E-6 Rock Creek E-18, L-5, N-5 Silver Butte Fisher River N-8, Poorman Creek K-6 Rock Lake L-6 N-9 Poorman Mtn. A-14 Rock Lake fault K-5 Silver Butte Pass M-8 Porcupine Creek B-8, H-4 Roderick Butte C-5 Silver Cable K-6 Potter L-11 Roderick Mtn. D-4 Silver Grouse H-3 172 GEOLOGY AND MINERAL DEPOSITS, LINCOLN AND FLATHEAD COUNTIES APPENDIX-ATLAS 173

Silver King H-2 South Fork Flathead River H-25, Stonehill placer 0-10 Tetrault Lake A-12 Verdun Creek 1-5 Whistler Creek K-35 Silver Mtn. 1-6 N-32, 0-33, P-33 Stoner Creek L-22 Therriault Creek A-15 Vermiculite Mtn. G-9 Whitcomb Creek M -33 South Fork Flower Creek 1-6 Silver Run Creek 1-25 Stony Creek N-30 Therriault Lake A-15 Vermilion N-8 Whitcomb Peak M-33 South Fork Hemler Creek J-24 Strawberry Creek K-37, L-37 Silvertip Creek N-34 Thicket Creek 1-3 Vermilion River N-9 Whitefish H-21, H-22 Silvertip Mtn. 0-35 South Fork Hill D-8 Strawberry Mtn. J-26 Thirsty Lake B-13 Victor Empire 1-6 Whitefish Creek E-19 Sim Creek B-4 South Fork Jackson Creek G-9 String Creek 0-30 Whitefish Lake G-21 Sims M-8 South Fork Keeler Creek 1-2 Strodtbeck 1-13 Thirsty Mtn. C-9 Viking M-8 Sims Creek N-9 South Fork Lost Creek N-28 Stryker D-16 Thoma Creek A-18 Vine Creek B-6 Whitefish Mtn. C-18 Sinclair Creek 1-14, H-17 South Fork Ross Creek J-2 Stryker Lake 0-17 Thompson Lakes L-13 Vogt Creek E-23 Whitefish Peak H-21 Sixmile Creek M-27 South Fork Yaak River C-5, C-6, Stryker Peak D-17 Thompson River M-14, N-13 Volcour F-il Whitefish River H-21, J-22 D-6 Skaggs Lake N-22 Stryker Ridge 0-18 Three Eagles Mtn. K-27 Wabumo Creek K-ll White River Q-35 Skelly Creek A-2 Spar Creek J-2 Studebaker Draw F-4 Threemile Creek G-2 Waino's Drift M-18 Whitetail Creek B-4 Skid Creek D-12 Sparks School 1-20 Sugarloaf Mtn. 1-5 Sullivan Creek B-IO, L-29, M-30, Three Sisters 0-36 Walker Creek H-22 Whitney Creek M-12 Skookoleel Creek F-22 Spar Lake 1-2 Spar Lake copper 1-2 N-18,0-18 Three Sisters Creek 0-36 Wall Creek 0-35 Whoopee Creek 1-2 Skookum Mtn. D-4 Sullivan Peak J-13 Sky Lake 1-5 Spar Peak J-2 Summit Spring G-13 Thunderbolt Mtn. N-29 Waloven Creek M-8 Wigwam River A-15 Skyland Creek 1-33 Spencer Lake H-20 Sunburst Lake P-30 Thunder Mtn. C-l Warn Creek A-16 Wild Bill Creek L-20 Spoon Lake G-24 Sunday Creek E-16 Skyline Mtn. F-4 Tideman 1-13 Wampoo Creek E-3 Wildcat Creek J-26 Sunday Mtn. E-15 Slick Creek P-33 Spotted Bear Ranger Station M-31 Sunshine Creek B-3 Tin Creek M-30 Wanless Lake L-6 Wildcat Mtn. J-27 Slide Creek M-29 Spotted Bear River M-32, M-33, Surprise Hill 1-14 Tnuya Creek B-18 Wapiti Mtn. L-IO Wildrose Mtn. K-33 Slim Creek N-35 N-36 Sutton ColO Tobacco Plains A-13 Warex E-10 Williams L-7 Slimmer Creek L-13 Spread Creek B-2 Sutton Creek ColO Tobacco River B-12, B-14 Warland F-lO Williams Creek B-16 Slippery Bill Mtn. J-34 Spring Creek J-21, J-22, M-8, Sutton Mtn. D-12 Tony Peak H-9 Warland Peak G-12 Smeads Creek L-3 Sutton placer C-IO Willow Creek N-IO, 0-32 N-9 Warrior Creek N-30 Smearl Creek J-6 Spruce Creek C-21 Swamp Creek E-12, E-14, K-8, Tooley Lake A-ll Willow Creek Pass N-10 Smith Lake K-20 Spruce Lake 1-2 N-6 Trail Creek A-20, J-25, L-8, M-32 Waylett K-8 Winkum Creek A-3 Smith Valley K-20 Square Mtn. J-34 Swaney Creek H-16 Trapper Creek M-8 Waylett placer N-8 Winter Creek L-36 Smoke Creek K-lO Squaw Creek J-9 Swan Glaciers P-30 Trego 0-15 Wayup L-6 Wishbone Lake 1-5 Smoky Butte 1-9 Squaw Meadows 1-16 Swan Lake L-26, M-27 Trickle Creek P-3l Weasel Creek A -17 Wolf Creek G-14, H-14, 1-11, Smoot Creek D-6 Squaw Meadows Creek 1-16 Swan Lake campground M-27 Trio 1-3 Weasel Gulch J-3 K-26 Snake Creek K-5 Stadium Creek P-32 Swan River L-25, L-26, N-27 Weasel Lake A-17 Snell Creek J-ll Stadium Peak P-31 Swanson Creek H-4, H-17 Troy G-3 Wolf Mtn. J-12 Snipes Creek K-12 Stahl A-13, H-17 Swede Mtn. H-8 Truman Creek K-20, L-20 Webb Lake M-32 Wood Creek A-6

Snipetown placer E-2 Stahl Creek B-16 Sylvanite D-3 r Trumbull Creek H-23 Webb Mtn. C-9 W oodfir Creek Q-34 Snow Creek 1-6, P-32 Standard Creek L-7 Sylvanite Ranger Station D-3 Tuchuck Creek A-18 Weigal Creek G-13 Woods E-5 Snowfall M-8 Standard Peak F -23 Sylvan Lake N-lO Tuchuck Mtn. A-17 Weigal Mtn. G-13 Woods Bay M-25 Snow Peak P-32 Stanley Creek 1-3 Sylvia Lake H-16 Tunnel Creek 1-29 Welcome Spring M-19 Wort G-20 Snowshoe anticline K-6 Stanley Mtn. 1-3 Table Bay M-23 Werner Peak F-20 Snowshoe Creek J-6 Stanley Peak 1-2 Table Mtn. N-36 Turner Creek B-7 Wounded Buck Creek J-26 Snowshoe mine J-6 Stanton Creek H-28 Tallulah Creek L-13 Turner Mtn. E-6 West Branch E-8 Yaak Falls E-3 Snowshoe Peak J-5 Stanton Glacier H-28 Tally Lake H-19 Twentyfivemile Creek K-33 West Dry Fork Creek H-12 Yaak Mtn. F-2 Snowstorm dike G-2 Stanton Lake H-29 Tally Lake campground H-19 Twin Creek H-4, L-14, L-32, West Fisher Creek L-8 Yaak River A-4, A-5, 0-4, E-3, Snowstorm mine G-2 Star Creek F-I Tamarack Creek J-12, M-16 M-31 West Flathead mine M-18 F-2 Soldier Creek L-4, M-30 Star Gulch K-3 Taylor Creek 1-18 Twin Lakes Creek M-13 West Fork Canyon Creek N-7 Yakinikak Creek B-18 Solo Joe Creek B-7 State Line E-I Teakettle Mtn. G-24 West Fork Dayton Creek M-21 Yellow Bay N-25 Solo Joe placer A-7 Statesman K-6 Teeters Peak L-8 Twin Meadows Creek F -14 Somers L-23 Steep Creek D-9 Tenmile Creek E-II Twin Mtn. L-32 West Fork Granite Creek 1-5 Yellow Bay Creek N-25, N-26 Sophie Lake A-12 Stenerson Mtn. F-12 Tenmile Mtn. E-12 Twin Peaks L-6 West Fork Quartz Creek F-5 Yew Creek M-26 South Creek M-32 Sterling Creek E-12 Tensaw Creek J-13 Unawah J-29 West Fork Rock Creek L-5 Young Creek A-lO, A-ll South Fork Big Creek D-7 Stevens Creek M-4 Tent Mtn. K-35 Union L-7 West Fork Whitefish Creek D-18 Yukon H-17 South Fork Big Lost Creek 1-19 Stewart Creek E-15 Tepee Creek B-19, B-21, K-9 Upham Creek J-4 West Fork Yaak River A-3, A-5 Zero Creek C-3 South Fork Canyon Creek G-23 Still Creek 0-12 Tepee Hill 1-15 Ziegler Mtn. F-lO South Fork Coal Creek D-20 Stillwater River D-17, F-18, G-20, Tepee Lake B-20 Upper Cedar Lake H-5 West Virginia H-17 South Fork Creek 1-2, K-2, K-29 1-21 Tepee Mtn. E-2, H-14 Upper Stillwater Lakes E-18 Whale Creek B-18, B-20 Zimmerman Hill A-6 South Fork Dry Creek K-2 Stonehill 0-10 Tetrault A-14 Upper Whitefish Lake 0-19 Wheeler Creek L-28 Zulu Creek D-6 " PRODUCTION STATISTICS 177

Table 6.-Production of gold, silver, copper, lead, and zinc from Lincoln County"/ 1900-64.

Operating Ore Gold Silver Copper Lead Zinc Total Year mines (tons) (oz.) (oz.) (lb.) (lb.) (lb.) value

b 1900 / ----_ ...... _---.- -_ ._. _------1,350 67,181 803,585 $ 149,887 1901"/ ... _-.-_ ... _------._--.---... - 2,247 40,186 300,000 111,414 b 1902 / ..... _------. _------_... _. _---- b 1903 / ..... _------.- ... __ .. _- ..... _- - 1904"/ --- ._- .-.------747,869 32,233 1905"/ .-_ .. -.------_ .... 1,101 29,905 1,415,691 127,962 1906 --_.- ..-.- --- -_._---_ .. -._-_. -.- 85 1,708 1907 ... _----- _._------70 2,400 2,963 1908 -----. ---.------_ ... - 1909 .... ------.----- _... _- -- - 5 5 157 179 1910 .. ... ---.------.---_ .... 5 208 102 126 2,619 3,185 1911 ------_._ .------6 4,642 259 14,621 792,485 48,587 1912 ...... _---. ------_. -. 4 8,719 659 21,300 1,11 5,000 56,800 79,885 1913 -----.--_.-- .--.. 2 125 120 420 21,900 4,553

1914 '-'-' ._-_._-- ---.-.------_ ... 1915 - - ..... _-_ .. _------_.- ..... --- · 2 377 234 4,058 53,305 9,256 1916 ...... 4 343 388 167 537 10,530 8,821 1917 ...... 2 62,277 1,042 91,450 3,840,000 1,805,000 591,255 1918 2 65,412 1,045 187,531 44,750 9,394,638 8,121,925 829,618 1919 ...... 2 62,019 707 163,400 38,700 6,200,000 1,106,000 637,052 1920 1 30,875 262 114,200 25,900 3,350,000 510,300 273,767 1921 ...... 3 15,011 321 50,250 997,000 11,985 83,759 1922 ...... 3 63,679 526 151,000 3,399,000 305,533 1923 ...... 2 44,982 484 75,750 7,100 2,108,000 71,510 137,558 1924 ...... 2 33,254 364 36,075 376 1,195,000 250,800 143,186 1925 ...... 3 12,624 105 9,810 508,500 332,600 80,274 1926 ...... 2 6,536 81.6 7,620 3,210 438,500 541,500 83,496 1927 ...... 3 5,002 54.3 5,503 5,015 338,000 599,000 65,050 1928 ...... 7 1,460 756 2,504 290 99,815 36,843 25,248 1929 4 1,613 65 4,940 149 1,445,000 33,600 16,002 1930 ...... 4 1,864 178 8,620 154 726,000 10,816 1931 .. .. -...... 4 123 23 105 37 6,200 761 1932 · ...... 6 1,152 384.4 4,546 651 39,300 10,104 1933 ...... 9 6,987 2,219.9 13,823 1,734 108,216 55,015 1934 · ...... 7 3,964 1,006.65 14,202 2,425 172,108 52,287 1935·37', ...... 476,936- 1938 ...... 9 1,560+ 2,400 4,817 296 59,739 12,625 90,497 ) 1939 ...... 5 14,000 1,944 1l,024 4,798 83,809 79,961 1940 ...... 14 26,348 2,204 19,513 6,000 225,300 8,000 103,463 1941 ...... 7 25,255 2,357 10,274 1,400 256,000 26,400 106,544 1942 .... -...... 2 880+ 105 2,527 114,300 13,130 1943 ...... 4 2,325+ 58 1,125 1,000 44,800 51,000 12,476 1944 ...... 4 5,306+ 170 5,490 2,400 222,400 236,500 54,931 1945 ...... -- ...... 3 4,015 65 1,485 1,000 46,000 70,000 15,472 1946 ...... 1 450 19 297 100 10,400 19,000 4,373 1947 ...... 2 51 205 11 300 7,228 1948 .. - ...... _...... __... 1 93 298 8,200 2,100 1,947 1949 ...... 5 117+ 2 211 100 20,300 15,000 5,348 1950 ...... 3 100+ 83 789 SOO 15,800 500 5,927 1951 ...... 4 179+ 37 53 8,000 6,000 3,819 1952-56 ...... 1957 · ...... 1 9 154 2,000 740 1958·64e ...... W Totals ...... 513,927 25,902.85 1,179,918 148,622 40,745,609 13,924,988 $4,990,768

a/ Compiled from "Mineral Resources of the United States" and "Minerals Yearbook". b/ Production figures from Inspector of Mines Reports for 1902 to 1906. c/ Production from Lincoln County combined with total state production. d/ Approximate value of ore produced during thIs period, the total value reported to conceal Individual mine production. e/ Production for these years combined with total production. W/ Withheld to avoid disclosing confidential data. "l \ 178 GEOLOGY AND MINERAL DEPOSITS, LINCOLN AND FLATHEAD COUNTIES •

Table 7.-Production of gold, silver, copper, lead, and zinc from Flathead CountY'f, 1900-64.

Operating Ore Gold Silver Copper Lead Zinc Total Year mines (tons) (oz.) (Oz.) (lb.) (lb.) (lb.) value

1900-20 (no production figures) $ 28,170 1921 .... __. .... -... -.. ---_ .. ---. 1 100 45,000 1922-27 ______--( 1928 ------_.- _.- .. _ .. 1 10,000 555,000 323,010 1929 ._------_. 1 10,000 900,000 476,100 1930-33 ______

1934 .--- -_ . -- .------_.--- 1 3,765 30 133,220 25 1,645 87,252 1935 ------_._-_ ...... _- -...... 1 18.227 536,665 385,728 1936 ------_.--_ ..... ----. -.----- 2 17,383 2 484,989 375,694 1937 ..... ---_ ...... ---- - 2 21,430 2 550,128 1,615,000 520,879 1938 .. _._-- -- _. . _------_.. _--- 3 21,016 646 521,532 796 2,427,000 471,272 1939 ------_.----_.-.--._------3 26,860 614 473,846 3,404 5,533,553 603,562 1940 . _.- .------3 32,137 513 624,479 109,000 7,175,200 833,106 1941 .------_ ..-- -- 3 32,552 303 665,138 59,000 5,647,000 812,433 1942 ------3 27,879 370 770,206 101,000 1,227,700 655,129 1943 ------2 20,445 624 490,050 259,700 404,081 1944 _._----_.------2 3,220 149 93,330 62,200 1,500 3,500 80,499

1945 _ ...... ~ ~ ~ ...... 1 1,437 42 40,500 6,000 31,080 1946 ...... 1 2,020 90 42,323 30,000 42,207 1947 ...... _.... _ ...... _...... - 1948 _.. . _. .. _...... 1 30 1 32 200 1,200 5,200 1,014 1949 -_.. . _------_. .. _- ---_.. 1950 ...... 1 48 2 95 400 239 (

1951 ...... ~ ...... 1 300 5 401 2,000 1,022

1952 ...... ~ ... _... . . _.... . 1 1 50 80 1953 ...... _. .... 1954 ...... _...... 1 5 200 356 b 1955-64 / ...... W Total ______248,849 3,399 6,927,184 633,725 23,629,798 8,700 $6,337,860 al Compiled from "Mineral Resources of the United States" and "Minerals Yearbook", bl Production for these years combined with total production. WI Withheld to avoid disclosing confidential data.

I 182 GEOLOGY AND MINERAL DEPOSITS. LINCOLN AND FLATHEAD COUNTIES INDEX 179

Temperature ...... 5 Vermilion mine ...... " ...... 122, 124 Aerial photographs ...... 2 Cenozoic crustal movements ...... 72 Tetrault (prospect) 126. 130 Victor-Empire mine ...... 92, 93 Age, radiometric .... 16, 56, 72 Cephalopods 46 The Placer ...... 84 Victor-Empire Mining and Milling Company ...... 92 Ajax placer ... 74, 80, 83, 122, 126 Chance Mining Company ...... 99 Thompson Lakes district ...... 82, 114 Victor Gold Mining Company ...... 92 Albertella fauna 42 Chicago and Montana Mining Company .... 85 Tideman placer 74, 78, 80, 82, 83, 119 Victoria mine ...... 111 Aluminum reduction plant .. 5 Chief Cliff district 144 Timber .. .. ______. ____ _... .. ___ .. ___ .... ___ .... __ ...... __ . 5 Viking mine ...... 75, 121-123 American Kootenai mine . 73, 107 China Lake placer ...... 81 Tip Top mine . 73, 75. 77, 107 Viking Mining Company .... 121 American Kootenai Mining & Miling Company 107 Clay 153 Topographic maps 9 Walker (prospect) 90 Anaconda Company. The (Anaconda Climate ...... 5 Tremolite 148, 153 Waylett placer ...... 80,84 Mining Company) ...... 5, 60, 74, 137, 140, 149 Coal ..... 155 Trilobites . 40, 42-44 Waylett (prospect) 75-77, 105, 115, 122 Analyses, chemical .... 174-176 Collenia ...... 29, 35 Trio ( prospect) ...... 62 Wayup mine ...... 109 Apatite ... 148 Cornet Mining Company ...... 81 Troy district . 75, 98 West Fisher (Cabinet) district ...... 105 Asbestos ...... 148, 153 Cornet placer .... 80, 81, 87 Troy Mines Company . ... 98 West Flathead mine .. 58, 60, 74, 138-140 Asphaltite 156 Continental Divide ...... 2 Tufa 153 West Virginia mine ...... 74, 77, 131, 132, 134, 136, 137 B. and B. mine 73, 98 Copeland placer .... 56, 74, 80, 81 Twin Peaks Mining Company ...... 129 Williams (prospect) . 110 Barite 77, 149 Copper King (prospect) 132, 134, 135 Unawah (prospect) ...... 145 Wollastonite . 153 Battle Butte mine 138, 142 Copper Mountain barite 149, 150 Union (prospect) .... 108 Wort (prospect) 143 Bear (prospect) .... 105 Copper Reward (prospect) ...... 87, 90 Universal mine .... 104 W. R. Grace Company ...... 75, 147 Bear Creek placer 79 Corals ...... " .... 46, 48-50 Universal Zonolite Insulation Company . 75, 147 Yaak Falls (prospect) ...... 113 Belemnites ...... 50 Correlation ...... 17 Ural area ...... 83, 119 Yaak River district . 75, 81, 111 Betty Mae (prospect) 110 Courageous Mining Company .. ,...... 106 Valley Sand and Gravel Company ...... 155 Yukon mine ...... 132, 134, 136 Big Creek (prospect) . 120 Crater ( Crater Lake) (prospect) 61, 63 Vaughn and Greenwell placer 73, 74, 79 Zonolite Company 57, 74, 75, 147 Big Creek Extension (prospect) ...... 121 Crinoid fragments .... 47-49 Vermiculite ...... 77, 146 Big Eight mine ...... 73, 98, 99, 105 Crosley-Sucetti (prospects) 132, 136 Big Eight placer 78, 80, 82, 83 Daniel Lee (prospect) ...... _...... 104 Big Four mine . 144 Darling placer '. ' ...... 80, 82 Big Sky mine 75, 87, 93, 94 Davis & White Mining Company 79 Mimetallic mine 104 Diamond John (prospect) 111 Biotite .. 148 Dominion mine 124 Bimetallic mine 104 Drainage system ...... 6 Black Diamond mine ...... 63, 75, 112 Duplex mine ...... 112 Black Diamond Mining Syndicate 112 Earthquakes ...... 7 Black Horse (prospect) ... 104 Echinoid fragments 49 Blacktail mine ...... 74, 77, 84, 107, 132, 133, 135 Engbretson Gravel Company 155 Blacktail Mining Company 107 Esther May asbestos ... 153 Blue Bird (prospect) .... 126, 127, 129 Eureka district 126 Blue Grouse (prospect) 84, 135, 136 Farming ...... 5 Bog-type manganese .... 75 Feldspar ...... 148, 155 Bolyard placer .. 79, 80, 87 Ferrel (prospect) 113 Bonnett-Hoerner barite 151 Fisher Creek mine ..... 73, 75, 106 Boulder Hill (prospect) .... 70, 117 Fisher Creek Mining Company ...... 106 Brachiopods ... 40, 42-44, 46-50 Flathead County Road Department ...... 155 Branagan mine 73, 106 Flathead mine 58-61 , 70, 74, 76, 77, 137, 138, 142, 155 Brophy placer ...... 81 Foolsberg mine ...... 74, 77, 131-134 Bryozoans . .. .. 46-49 Ford placer ...... 105 Buckhorn mine (Idaho) 114 Frosted sand grains ...... 34 Bunker Hill Company 112 "Fumarole holes, mud" 76, 140 Cabinet district 105 Gastropods .. 46, 51 Cabinet Queen mine ...... 104 Getner placer ... 80, 82 Cable Mining Company ...... 95 Calcite nodules ...... 29 Giant Sunrise mine ...... 100 Canuck Copper (prospect) ... 113 Glacier National Park ...... 2, 73 Carpenter mine ...... 124 Glacier Silver-Lead mine ...... _.. , ...... 63, 90, 91 181 180 GEOLOGY AND MINERAL DEPOSITS, LINCOLN AND FLATHEAD COUNTIES I NDEX

______.. _.. _____ ._ .. _. .. ______... ____ . ______5 Gloria mine 73, 75-77, 108, 109 Kochaspis upis fauna 44 Montana Morning mine 101, 103 Ranching Glossopleura zone ______40 Kotschevar barite 149, 150 Montana placer 80, 81, 87 Rankin (prospect) 63, 113 ____ 117 Golden West mine 75, 108, 109 La ngford placers ______._. __ 85 Montana Silver-Lead Mining Company 93 Raven (prospect) . ____ . ___ 74, 79, 80, 87 Golden West Mining Company 108 Laramide movements 7, 54, 61, 71-73 Montana Sunrise mine ______.. __ . ____ _._._ .. . _. 100 Red Gulch place r ______97 Goldflint mine ___ _ III Larue-Crwe asbestos 153 Montana Sunset quarry __ . ____ ._. __ _. __ .. _. ___ _ 59, 155 Remp (prospect) ______._ 105 Goldflint Mining Company 111 Last Chance (prospect) 102 Montezuma (prospect) 105, 114 Rose Consolidated mine ___ . ____ _. __ 88, 90 Gold Hill mine ______121, 123 Leupfer (see Lupfer) ______. ______143 Moonlight (prospect) __ 132, 135 St. Paul Lead Company ______. ______87, 88, 90 Goldhill-Montana-Kootenai placer ______79 Libby Creek Gold Mining Company placer __ ._ 74, 79, 80, 87 Moose Hill (prospect) 75, 115 St. Paul mine _. ______122, 125 Gold King (prospect) ---- _ 122, 126 Libby district 64, 75-77, 79, 85, 87 Morning Glory mine III Sales mine ______. ______.. __ . __ __ .. 132, 135 Granite Creek mine ______87, 93 Libby Placer Company placer __ 73, 74, 79-81, 87 Mosher (prospect) _ 144 Sanko (prospect) _ Granite Creek Mining Company ____ . ____ . __ __. __. __ __ ._ _ 93 Libby mine _____ ._ .. _ ____ ._. 108 Mother Lode (prospect) _____ . ______. 111 Seattle (prospect) ______. _ 87, 88, 90 Second Chance (prospect) ______._.______119 Gravel and sand _. __ 155 Liberty Metals mine __ ._ 100, 101 Mountain ranges ______.. ______6 Seek (prospect) ______._ .. ____ .. __ . ___ . ___ _. __ .. _. . _._ 143 Great Northern Railway ______._._ __. ______------. 2 Liberty mine _ 61, 62 Mountain Rose mine ___ . ______. ___ _. ______.. . ____ 93 Shaughnessy Hill mine ______.______.. _ 91 Greenough Investment Company ______. ______98 "Liberty placer mines" 79 Mount View Paving Company ____ _ 155 ______.. ____ _.. ______.. 51 Silver Butte district ______. ______. ______.______73, 76 Griffin Creek (prospect) ______._ 132, 135, 137 Lignite __ Mustang (prospect) 110 Silver Butte mine ___ .. __ ._ .. _._. _____ . ______. ______73, 122, 124 Grizzly (prospect) __ _ 87, 95, 96 Limestone 154 Natural gas .. ____ 156 Grouse Mountain mine ___ _ 100 Lincoln Mining Company ._ III New Deal mine _ 107 Silver Butte Zinc-Lead Mining Company ______.. 122 Halfmoon (prospect) _. _____ ._ __ . ______. ___ .___ 87, 97 Lippincott mine .. _ 145 New Mine ______._. __ ... __ . __ __ . ______.. ______. ___ _ 108 Silver Cable (prospect) ______. ___ ._____ . ______..... ____ . ____ ._ 87, 95 Hannegan mine __ . ______... _. ______... ______108 Li(tIe Annie mine . ______73, 77, 108 New Morning Glory mine . ______._. ______III Silver Grouse (prospect) __._ ... ___ ._ . __ ._. ______102 ______102 Hansen (prospect) ___. ______. ______. ______... ______120, 126 Little Spokane (prospect) 102 New Victor-E~ire Mining and Milling Company __ . __... ____ 92 Silver King mine __ Northern mine ______. ______.. . _____ .. _. . ___ ._ 145 Hathaway (prospect) ----- 117 Lucky Mac (prospect) _. ____ ._ ..... _ 117 Silver Mountain mine 63, 73, 87, 93 ______.______83, 121 Silver Star Mine, Inc . .. __ ._. ______. ______. __ _ Hazel T. mine 90, 91 Lucky Strike (prospect) 84, 132, 135 Northern Thompson Falls area _ 90 Silver Strike mine ___ . ______. ______.. __ _ Herbert (prospect) ------.-- __ ._._ .. _. __ ._ . 75, 97 Lukens-Hazel mine 90, 92 North Star mine 120 104 Silver Strike Mining Company ______Herrig placer 84, 85 Lumbering ______.. __ .. __ .. 5 Nugget placer 74,79 101 Silvertip (prospect) __ __ .. _____ . ______. Hiawatha (prospect) 103 Lupfer Mining Company 143 Oil, oil seeps 156 85, 87, 89 Highways _ .. ____ .___ . _ 2 Lynx Creek talc _ 152 Okedale mine 145 Silver Torrent Mining Company 99 Hoerner (prospect) _____ . __ __. __.. ______.______114,132 Mammals _... 51 Ole mine __ 60, 74, 76, 138, 140, 141 Sims (prospect) 122, 125 Hog Heaven district ___ 58, 60, 72, 74-77, 137, 138 Manganese 76 Oro mine ____ ... ______. _____ . ___ _ 112 Snipetown placer 74, 80, 81 Horse Hill (prospect) __ _. _. ___ .. . ____ .. ______136 Margarita mine 138 Oro Mining Syndicate 90 Snowfall 5 ______64, 122, 125 Howard placer ______. __ . __ .. __ . __ ___ . ______74, 80, 81, 87 Martin mine .. _ 58-60, 138, 142, 143 Pacific Northwest Mining Company 85 SnowfalI (prospect) Howard (prospect) _. ___ . ___ __ . ______. __ . __ ___ .. _____ .______85, 89 Martin (prospect) 126 Peacock (prospect) 137 Snowshoe mine _.. __ 61, 63, 64, 73, 85-89 Snowstorm mine __ . __ ._ . ___ _._ .. __ ._. . _. __ . ____ . ______.___ 73, 98, 99 Hoyt mine ______._... ._. ___ .. ______56, 120 Maryann mine 138, 142 Peat ____ . 155 Snowstorm Mines Consolidated Company ____ _ 98 Humdinger (prospect) 132, 134, 135 Mathews talc ._. _____ 69, 152 Peneplanation _. ______._. ______. ____ _.. __ .. _. _. __ ._ . ____ _. . ___ . __ ._ .. 7 Solo Joe placer .. . __. ______._ ._.__ 74, 80, 81 Hyolithes ______. ______. _____ . 40 McDonald (prospect) ___ 95 Peterson (prospect) ______... __ 126, 1-29, 131 , 152 Spar Lake Copper (prospect) __ __ _ 104 Independence mine 77, 126, 128 McEwen (prospect) 113 Phillips (prospect) .. . ___.. ______..... ___ 114 Stahl (prospect) _ .. ___ 132, 136 Industries ______.. ______.. ______.. __ __ _.. 5 McGuire (prospect) 119 Phosphorite ___ _ 51 Stahl limestone quarry ______126 Inspiration Lead (Company) 112 Merger Mines Corporation _ 88 Pioneer placer ___ _ 74, 78, 83 Irish Boy (prospect) _. __ 108 Mesozoic movements .. _. 72 Planimetric base maps 2 Star Meadow district __ 75-77, 131, 132 [ron Mask mine 101 Micho (prospect) ______143 Pleasant Valley area 85 State Line (prospect) ._ ... .. _._._ .... _.. __ ... _. __ .. ____ ._ .. .. _. ______._ 113 Jager (prospect) ___ 130 Midas Gold Mining and Milling Company _ 105 Population 5 Statesman (prospect) 87, 97 Jumbo mine (Flathead County) _. . ... __ ._._ .. _._. 144 Midas mine .__ 73, 75-77, 79, lOS, 110, 114, 115 Poston vermiculite (prospect) 147 Stone 153 Jumbo mine (Lincoln County) 73, 77, 107, 108 Millander placer ______. 79, 87 Potter (prospect) 116 Stonehill placer ._. ______. ______80, 83 Kalispell area ____ _ 143 Miller placer 74, 80, 82 Precambrian movements 72 Strodtbeck (prospect) 70, 117 Kenelty barite _ 75, 149, 151 Missouri-Montana Mining Company _._ .. .. __ 98 Precipitation .. _.. ______5 Stromatolites 26, 31, 33, 34, 36 __ .. _. ___ . __ ___ .. .. _._ .. _ 48 Kenelty (prospect) 120 Missouri ( prospect) . ___ __ . 95 Price (prospect) 126 Stromatoporoids ___ _... ______. ______. __ .. ___ _. ______58, 60 Kennedy (prospect) 118 Mitchell (prospect) 144 Production statistics 176-178 Sullivan Creek Spring (prospect) Sutton Creek placer __ .______80, 83 Kentucky Vermillion Company 122 Moen barite 126, 151, 152 Providence High Bar placer 84 Keystone mine III "Molar-tooth" structure 26, 29, 36, 66, 155 Quadrangle maps _ ___ 2 Swansea Rosa (prospect) ___ _ 126, 127, 129 ______88 Keystone Mining Company ___ . 111 Mollusks, fresh water __ ._ 51 Quartzite 154 Sydney Mining Company King mine ______.. _._. __ .. _. ___ . 73, 122, 124, 125 Molly Gibson (prospect) 90 Radiometric age dating ___ _ IS, 56, 72 Sylvanite district 69, 73, 75, 77, 81, 111 Kirkpatrick (prospect) Montana Mining and Milling Company 101 Rainy Creek vermiculite __. .. __ ...... _.. . __ .. _.. __ ..... __ ... _ . ___ . __ . 74 Talc ______. ______.. 152 76, 116 r STATE OF MONTANA Forrest H. Anderson, Governor

BUREAU OF MINES AND GEOLOGY BULLETIN 79 U. M. Sahinen, Director SEPTEMBER 1970

Geology and Mineral Deposits of Lincoln and Flathead Counties, Montana

by Willis M. Johns

Plates 1- 3

This bulletin has been prepared by the Montana Bureau of Mines and Geology under a cooperative agreement with the Great Northern Railway Company and the Pacific Power & Vght Company