TERRITOHP OF kLASHA DEPARTMENT OF 1vIINES 3; D. Stewart, Commissioner of Mines Ppphlet6 ' No. 5 MINERAL OC-CES IN NORlXWE5TERN WKA BY ESKIL ANDERSON Juneau, Alaska us, 1944- Page Introduction .......................................... 1 Antimony .............................................. 3 Cape Nome precinct ............................... 3 Cape Nome district .......................... 3 Council district. ........................... 5 Kougarok district ........................... 5 Port Clarence district ...................... 5 St . Tdichael precinct ............................. 6 Asbestos .............................................. 6 Cape Nome precinct ............................... 6 Port Clarence district ...................... 6 Fairhaven precinct ............................... 6 Koyuk precinct ................................... 7 Noatak-Kobuk precinct ............................ 7 Bexyllim......................................... 9 Cape Nome precinct......^........................ 9 Bimth............................................... 9 Gape Name precinct ............................... 9 Cape Nome district .......................... 9 Port Clarence district ....................... 9 St. bfichael precinct ............................. 10 ChoLZ1Jw .............................................. 10 Koyuk preoinct ................................... 10 Noatak-Kobuk precinct ............................ 10 Copper ............................................... 10 Cap Nome precinct ............................... 10 Cape Borne district. ......................... 10 Council district ............................ 12 Kougerok district ........................... 12 Port Clarence district ...................... 13 a Fairhaven precinct ............................... 14 Koyuk prectnct ................................... 14 Woatak-Kobuk precinct ........................... 14 St. !Jichael precinct ............................. 15 St . Lawrence Island ..................*...........16 Graphite .............................................. 16 Cape Nome precinct ...............................16 Cape Name district .......................... 16 Port Clarence district ...................... 16 Noatak-Kobuk precinct ............................ 16 Iron .............................................. 17 Cape Kome precinct.. ............................. 17 Cape IJome district .......................... 17 Noatak-Kobuk precinct. ........................... 17 St. Lawrence Island.. ......................*.....17 Page Lead-Silver-Zina.. ..................................... 17 Cape Nome precinct ................................ 17 Cape Nome district ........................... 17 Council district ............................. 18 Kougarok district ............................ 19 Port Clarence district .......................19 Fairhaven precinct ................................ 21 Koatak-Kobuk precinct ...... ....................... 22 St. Lawrence Island ............................... 23 Ubrc~y................................ ep.. 23 Cape Nome precinct ................................ 23 Cape tome district ........................... 23 Council district.........,....,......,.^.^..^ 23 Kougarolc district ............................ 24 Port Clarence district ....................... 24 Bairhaven precinct ................................ 24 Koyuk precinct .................:.................. 24 l.Toata!x-Kobuk precinct ............................. 24 .Lolybdenm ............................................. 24 Cape Nome precinct.... ............................ 24 Cape Nome district ........................... 24 Port Clarence district ....................... 25 St. Lawrence Island. .............................. 25 PTickel .................................................26 Petroleum - Coal ..................................... 26 Gape Nome precinct ...............................26 Cape Nonle district;........................... 26 Kougarok district......................... 26 Fairhaven precinct ................................ 26 Koyuk precinct.... ................................ 27 Ploatak-Kobuk precinct ............................. 27 St. Michael precinct .............................. 28 St . .Lawrence Islmd.............................. 28 Platinm............................................ .. 29 Tin.................................................... 29 Cape Nome Precinct ................................ 29 Cape Nome district ........................... 29 Kougarok district ............................ 29 Port Clarence district....................... 30 Fairhaven pecinct ............................... 30 Koatak-Kobuk precinct ............................. 30 St . Lawrence Island.............................. 31 CONTmTTS ( Cont 'd ) Page -sten ...............................................31 Cape 1Qome precicct ............................ .... 31 Cape Kome district ........................... 31 Council district............................. 32 Kougarok district ............................32 Port Clarence district ....................... 32 . 'Fairheven'preoinot ...........................33 Kopk precinct .....................................34 ;;oat&-Kobuk precinct .............................34 St . liiichael precinct .............................. 34 PWscellmeous ..........................................34 Cape Kame precinct.. .............................. 34 Cape Nome district........................... 34 Council district ............................. 94 Port Clarence district ....................... 35 Fairhaven precinct ................................ 35 Noatak-Kobuk precinct .............................36 Page Fig. 1. 5!ap of Northwestern Alaska showing mini'% precincts ............................. 2 INTRODUCTION This pamphlet has been prepared to serve as an easy reference for prospectors and miners to deposits of mineral8 other than gold in I'Jorthwestern Alaska. Some such deposits which do not warrant further prospecting are visited and re- visited mainly because no definite information concerning them is available. Others that deserve prospecting are little known. Cfuch informtion has been obtained through field and assay offices of the Territorial Departnent of Mines. This information, combined with that obtained from reports by the U. S. Geological Survey, should represent a very nearly complete list of the known mineral occurrences of possible economic im- portance in the area. Only a brief description, or if no description is available, a mere record of each occurrence is contained in this pamphlet. Uescriptione of deposita containing only gold have not been included for the reason that such deposits are very numerous and the exact information necessary to determine their individual importance is in most instances lacking. Many of the descriptions are taken from publications of the U. S. Geolog6cnl Survey, particularly from bulletin 722, "Mineral Resources of Alaska, 1920, which is an early com- pilation of information on lode deposits. Some of the material from Geological Survey bulletins has been condensed instead of quoted directly. Appropriate references are given for use in case aore exact descriptions are desired. In order to avoid un- necessary repetition a number of tin deposits well described by the U. S. Geological Survey are indicated only by references to such publications. The daposits are classified by metal or material according to precincts and the localities within precincts in which they occur. b?o attempt has been made to give complete ge~lo~~icsldescriptions, but an effort has been made to khaBude avatlabfe information most indicative of the economic possibilities of the prospect. Somewhat more detailed de~criptionshave been given of deposits which are not described elsewhere or which, because of their inaccessibility, would be difficult to revisit. The area considered includes most of the Second Judicial Division of Alaska, or, roughly, the region north and west of a line between the Yukon River delta and Heald Point on the Arctic Ocean about 200 miles southeast of Tt. Bmrow (Fig. 1). Specifications and prices of minerals and metals are not included in this report. Non-metallic minerals which are of strategic importance and command exceptionally high prices at present are various types of asbestos and large, clear crystals of quartz, calcite and mica. The advice of experienced government mining engineers is available to prospectors throughout Alaska and should be ob- tained before any large expense is incurred in the development of a prospect. Cape Nome Precinct Cape Rome District: Dahl Creek, tributary of lost Creek, tributary of' Stewar! River - During the first Xorld '?/ar, from the Hed & Strand Antimony Yine,on Dahl Creek, 106 tons of antimony ore was shipped. A small [amount of work has been done since that time, but no further ore shipments have been made, An estimated 10 tons of about 3% ore is now on the dump. Over 1000 feet of tunnel is accessible, but only a few small lenses of stibnite were encountered in that distance, A possible 30 to 40 tons of antimony ore could be mined from lenses now in sight in the mine, The average gold content of the ore is low. Available information on the deposit cansisp of a map of the mine by A. B. Shallit of the Territorial Department of Mines and a description in U. S. Geolp&cd Survey BullW 722. Vaila Creek, tributary of Eobson Creek, tributary of Nose River - Sliscovitch hfine - Developmgnt work in the Sliscovitch Antimony-&ld