Field Surveying and Topographic Mapping in Alaska: 1947-83

Total Page:16

File Type:pdf, Size:1020Kb

Field Surveying and Topographic Mapping in Alaska: 1947-83 FIELD SURVEYING AND TOPOGRAPHIC MAPPING IN ALASKA: 1947-83 By Robert C. Foley U.S. GEOLOGICAL SURVEY CIRCULAR 991 A chronological review of surveying activities in Alaska from 1947 to 1983, including a brief description of camp life and some of the hardships and unusual experiences encountered DEPARTMENT OF THE INTERIOR DONALD PAUL HODEL, Secretary U.S. GEOLOGICAL SURVEY Dallas L. Peck, Director Free on application to the Books and Open-File Reports Section, U.S. Geological Survey, Federal Center, Box 25425, Denver, CO 80225 Foreword Field surveying and mapping in Alaska over the years have provided a unique opportunity for many not-so-ordinary experiences worthy of being recorded before they are lost forever. The author, Robert C. Foley, has pro- vided a historical recounting of the Geological Survey's Alaska field map- ping activities and related experiences during the period 1947-83. Robert retired from the Rocky Mountain Mapping Center in 1980 after 36 years of Federal service, including 16 field seasons spent in Alaska. He was hired as a reemployed annuitant until 1983. Robert is unquestionably this map- ping center's foremost Alaska mapping authority and was awarded the De- partment of the Interior's Superior Service Award in 1983 in recognition of his contributions, Although some editorial changes have been made to improve the organi- zation and flow of this publication, we have purposely avoided major changes in wording to preserve the author's style in recounting these events. Merle E. Southern Chief, Rocky Mountain Mapping Center U.S. Geological Survey Denver, Colorado Contents Foreword .......................................... Mapping activities. 1947-83-Continued Abstract ........................................... 1969 ........................................... 25 Introduction ....................................... 1970 .......................................... 25 Mapping activities before 1947 ..................... 1971 ............................................ 26 Mapping activities. 1947-83 ........................ 1972 ............................................ 26 1947 ............................................ 1973 ............................................. 27 1948 ............................................ 1974 ............................................ 28 1949 ........................................... 1975 ............................................ 28 1950 ............................................ 1976 ............................................ 28 1977 ....................................... 28 1978 ............................................ 29 1979 ...................... .... .. ............. 30 1980 ........................................ 31 1981 .......................................... 31 1982 ............................................ 32 1983 ........................................... 32 Summary .......................................... 34 Selected references ................................ 36 Appendig A-Alaska project campsites .............. 38 Appendix B-Alaska field crews .................... 39 Appendix C-Alaska geographic features named for U.S. Geological Survey employees .............. 43 Appendix D-History of explorations and surveys, by Alfred H . Brooks (1906) ........................ 45 Appendix E-Surveying and mapping in Alaska. by Gerald FitzGerald (1951) ....................... 75 page Map showing the location of project campsites ................................................................................. h pocket Figures Page First helicopter used in Alaska. near Big Delta ................................................................ 3 Author insmallboat at Pelicancamp ........................................................................ 4 CrewatGlacierBay ......................................................................................... 6 %air stylisf 'on the Gulkana-Tok project ....................................................................... 7 Triangulation station near Taku Harbor ...................................................................... 8 Fieldman going to work at Clarence Lake .................................................................... 9 Typical Survey camp in Alaska .............................................................................. 11 AU of the comforts of home-shower at Tanana ............................................................... 11 Inserting glass plate in phototheodolite ....................................................................... 12 Bell Model 476 helicopter after a bad landing near Northway .................................................. 14 Changing damaged helicopter blades onsite, Gardiner Creek .................................................. 14 Figures-Continued Page Widgeon after breaking through the ice at Schrader Lake ..................................................... heparing to haul fuel off Schrader Lake to designated areas for helicopter caches .............................. Dog team hauling fuel off the ice at Old John Lake ........................................................... Camp on Black River during the flood caused by heavy rains in Canada ....................................... Drivingthe AlcanHighwayto Alaska ........................................................................ First electronic distance-measuring equipment in use at Bering Glacier ......................................... Camp at Chisana, Wrangell Mountains ....................................................................... R. E . Isto. the Survey's first Alaska Resident Engineer, on the Juneau Ice Cap .................................. Damage from the Good Friday earthquake near Turnagain Slide ............................................... Amchitka Island showing quonset huts left from World War I1 ................................................. Geological Survey office in Fairbanks before the 1967 flood ................................................... Hiller 12-E helicopter, electrotape, and signal light on a map control point south of Bettles ...................... Survey convoy on the Alcan Highway en route to Anchorage .................................................. Satellite tracking instrument used for establishing geodetic positions from satellites ............................. Field classification of mapworthy features in Alaska suburbia .................................................. Mount McKinley as seen through the clouds from north of Talkeetna .......................................... Walter Cronkite inspecting equipment during filming of Survey operations for 'Universe" TVseries ................................................................................................. Satellite tracking receiver set up near pumping station as part of 1983 control tie work along the AlaskaPipeline ....................................................................................... Readying the Tiloma for a day's work near Juneau ............................................................ Field Surveying and Topographic Mapping in Alaska: 1947-83 By Robert C. Foley Abstract cal Survey's presence in Alaska, other Federal and State agencies were engaged in surveymg, The U.S.Geological Survey's earliest presence in Alaska dates back to 1889. A decade later, topographic mapping mapping, and charting activities in Alaska. The became an integral part of the Geological Survey's Alaska cooperative spirit and support that existed program, mostly as reconnaissance-type mapping and among these agencies made a difficult map- special-purpose mapping of specific sites. It was not until ping task somewhat easier. after World War I1 that the Survey's Alaska topographic Much of the early exploration work and map- mapping efforts began to bear fruit. This circular retraces surveying and topographic mapping ping effort in Alaska has been ably docu- by the Geological Survey in Alaska from 1947 to 1983 and mented by Alfred H. Brooks in The Geography describes camp life and some of the unusual happenings and Geology of Alaska (p. 104-132 are repro- involved in working In virtually uninhabited country, ad- duced as Appendix D in this circular) and by verse weather, and difficult terrain. A year-by-year recap of Gerald FitzGerald in Surveying and Mapping activities documents the transition from early small-scale mapping efforts to more accurate and detailed 1:63,360- in Alaska (reproduced as Appendix E), scale mapping for Alaska except the Aleutian Islands and The intent of this circular is not only to docu- isolated islands in the Bering Sea. Recent 1:25,000-scale ment Alaska field activities during the period metric mapping and the preparation of orthophotographs from 1947 to 1983, but to preserve something of and special mapping efforts for other Government agencies the past before all personal contact with the also are recounted. fieldmen involved is lost. The Geological Sur- vey workforce has gone through a transition of I Introduction sorts, where most of the older continqent of Alaska field personnel have assumed other 1889, As early as U.S. Geological Survey per- duties or retired. This circular presents a sonnel were sent to Alaska as members of vari- chronological recap of the work of ths sea- 1898 ous scientific expeditions. It was not until soned group of fieldmen and something of their that an organized and systematic topographic Alaska experiences-the favorite stories and mapping effort became an integral part of the anecdotes that could
Recommended publications
  • The Men of the “New” Makushin Village, Like Practically All Able-Bodied
    Chapter 6 The Lives of Sea Otter Hunters he men of the “new” Makushin Village, like practically all able-bodied Unanga{ men, were active sea otter hunters employed by the AC T Company. The reports that document the beginning of the long and irreversible decline of sea otter hunting tell us little about individuals. Among the names that do surface occasionally is that of Lazar Gordieff. He appears six times in the 1885-1889 AC Company copybook and in a few other documents. These fragmented records provide little more than shadows, but they are far more than we have for most Unanga{ of the late 19th century. Lazar was twenty-two in 1878 and living with his widowed father, two brothers and a sister at Chernofski.1 In a June 1885 letter from Rudolph Neumann, since 1880 the AC Company general agent at Unalaska, we learn that Lazar was given dried seal throats.2 From this it can be deduced that he crafted delicate models of kayaks. The throats of fur seals, removed, cleaned, and dried during the seal harvests in the Pribilof Islands, were the preferred material for covering the intricate wooden frames. This letter went to the agent on Wosnesenski Island, in the heart of the eastern sea otter grounds, where Gordieff was part of the summer hunting party. He may have spent time between hunts carving and assembling models. A few of these trade items, all anonymous, survive in museums and testify to intimate knowledge of the kayak and to a high degree of craftsmanship. The hunters were still away in August, but after they had returned to Unalaska in October and Neumann had gone over the records, which arrived on a subsequent ship, he discovered that Lazar owed the company $166 while another man owed $805.
    [Show full text]
  • United States Department of the Interior Reports of The
    UNITED STATES DEPARTMENT OF THE INTERIOR GEOLOGICAL SURVEY REPORTS OF THE ALASKA DIVISION OF GEOLOGICAL AND GEOPHYSICAL SURVEYS AND PREDECESSOR AGENCIES, 1913-1973, INDEXED BY QUmRANGLE BY Edward H. Cobb Open-f ile report 74- 209 1974 This report is preliminary and has not been edited or reviewed for conformity with Geological Survey standards NOTE NOTE NOTE Since this index was prepared 18 open-file reports of the Alaska Division of Geological and Geophysical Surveys have been withdrawn, consolidated, revised, or assigned different numbers. References to these reposts should be deleted from thes index. The report numbers are: 18, 19, 20, 21, 23, 24, 25, 26, 27, 28, 29, 32, 33, 34, 35, 37, 39, and 40. They are listed under the following quadrangles: Afognak Mar shall Ambler Mves McCarthy Anchorage Medf ra Baird Inlet Mt. Fairweather Bendeleben Mt. St. Elias Bering Glacier Nabesna Bethel Nunivak Island Big Delta Port Moller Cape Mendenhall Rubs Charley River St. Michael Chignik Sitka Coxdova Survey Pass Eagle Sutwik Island Hooper Bay Talkeetna ICY BY Talkeetna Mountains ILiamna Trinity Islands Kaguyak Tyonek Karluk Ugashik Kodiak Valde z Kwiguk Yakutat Contents Page Introduction ......................................................... Alaska - General ..................................................... Quadrangle index ..................................................... Adak quadrarLgle ................................................. Afognak quadrangle .............................................. Ambler River quadrangle ........................................
    [Show full text]
  • Crary-Henderson Collection, B1962.001
    REFERENCE CODE: AkAMH REPOSITORY NAME: Anchorage Museum at Rasmuson Center Bob and Evangeline Atwood Alaska Resource Center 625 C Street Anchorage, AK99501 Phone: 907-929-9235 Fax: 907-929-9233 Email: [email protected] Guide prepared by: Mary Langdon, Volunteer, and Sara Piasecki, Archivist TITLE: Crary-Henderson Collection COLLECTION NUMBER: B1962.001, B1962.001A OVERVIEW OF THE COLLECTION Dates: circa 1885-1930 Extent: 19.25 linear feet Language and Scripts: The collection is in English. Name of creator(s): Will Crary; Nan Henderson; Phinney S. Hunt; Miles Bros.; Lyman; George C. Cantwell; Johnson; L. G. Robertson; Lillie N. Gordon; John E. Worden; W. A. Henderson; H. Schultz; Merl LaVoy; Guy F. Cameron; Eric A. Hegg Administrative/Biographical History: The Crary and Henderson Families lived and worked in the Valdez area during the boom times of the early 1900s. William Halbrook Crary was a prospector and newspaper man born in the 1870s (may be 1873 or 1876). William and his brother Carl N. Crary came to Valdez in 1898. Will was a member of the prospecting party of the Arctic Mining Company; Carl was the captain of the association. The Company staked the “California Placer Claim” on Slate Creek and worked outside of Valdez on the claim. Slate Creek is a tributary of the Chitina River, in the Chistochina District of the Copper River Basin. Will Crary was the first townsite trustee for Valdez. Carl later worked in the pharmaceutical field in Valdez and was also the postmaster. Will married schoolteacher Nan Fitch in Valdez in 1906. Carl died of cancer in 1927 in Portland, Oregon.
    [Show full text]
  • Los Cien Montes Más Prominentes Del Planeta D
    LOS CIEN MONTES MÁS PROMINENTES DEL PLANETA D. Metzler, E. Jurgalski, J. de Ferranti, A. Maizlish Nº Nombre Alt. Prom. Situación Lat. Long. Collado de referencia Alt. Lat. Long. 1 MOUNT EVEREST 8848 8848 Nepal/Tibet (China) 27°59'18" 86°55'27" 0 2 ACONCAGUA 6962 6962 Argentina -32°39'12" -70°00'39" 0 3 DENALI / MOUNT McKINLEY 6194 6144 Alaska (USA) 63°04'12" -151°00'15" SSW of Rivas (Nicaragua) 50 11°23'03" -85°51'11" 4 KILIMANJARO (KIBO) 5895 5885 Tanzania -3°04'33" 37°21'06" near Suez Canal 10 30°33'21" 32°07'04" 5 COLON/BOLIVAR * 5775 5584 Colombia 10°50'21" -73°41'09" local 191 10°43'51" -72°57'37" 6 MOUNT LOGAN 5959 5250 Yukon (Canada) 60°34'00" -140°24’14“ Mentasta Pass 709 62°55'19" -143°40’08“ 7 PICO DE ORIZABA / CITLALTÉPETL 5636 4922 Mexico 19°01'48" -97°16'15" Champagne Pass 714 60°47'26" -136°25'15" 8 VINSON MASSIF 4892 4892 Antarctica -78°31’32“ -85°37’02“ 0 New Guinea (Indonesia, Irian 9 PUNCAK JAYA / CARSTENSZ PYRAMID 4884 4884 -4°03'48" 137°11'09" 0 Jaya) 10 EL'BRUS 5642 4741 Russia 43°21'12" 42°26'21" West Pakistan 901 26°33'39" 63°39'17" 11 MONT BLANC 4808 4695 France 45°49'57" 06°51'52" near Ozero Kubenskoye 113 60°42'12" c.37°07'46" 12 DAMAVAND 5610 4667 Iran 35°57'18" 52°06'36" South of Kaukasus 943 42°01'27" 43°29'54" 13 KLYUCHEVSKAYA 4750 4649 Kamchatka (Russia) 56°03'15" 160°38'27" 101 60°23'27" 163°53'09" 14 NANGA PARBAT 8125 4608 Pakistan 35°14'21" 74°35'27" Zoji La 3517 34°16'39" 75°28'16" 15 MAUNA KEA 4205 4205 Hawaii (USA) 19°49'14" -155°28’05“ 0 16 JENGISH CHOKUSU 7435 4144 Kyrghysztan/China 42°02'15" 80°07'30"
    [Show full text]
  • Alaska Range
    Alaska Range Introduction The heavily glacierized Alaska Range consists of a number of adjacent and discrete mountain ranges that extend in an arc more than 750 km long (figs. 1, 381). From east to west, named ranges include the Nutzotin, Mentas- ta, Amphitheater, Clearwater, Tokosha, Kichatna, Teocalli, Tordrillo, Terra Cotta, and Revelation Mountains. This arcuate mountain massif spans the area from the White River, just east of the Canadian Border, to Merrill Pass on the western side of Cook Inlet southwest of Anchorage. Many of the indi- Figure 381.—Index map of vidual ranges support glaciers. The total glacier area of the Alaska Range is the Alaska Range showing 2 approximately 13,900 km (Post and Meier, 1980, p. 45). Its several thousand the glacierized areas. Index glaciers range in size from tiny unnamed cirque glaciers with areas of less map modified from Field than 1 km2 to very large valley glaciers with lengths up to 76 km (Denton (1975a). Figure 382.—Enlargement of NOAA Advanced Very High Resolution Radiometer (AVHRR) image mosaic of the Alaska Range in summer 1995. National Oceanic and Atmospheric Administration image mosaic from Mike Fleming, Alaska Science Center, U.S. Geological Survey, Anchorage, Alaska. The numbers 1–5 indicate the seg- ments of the Alaska Range discussed in the text. K406 SATELLITE IMAGE ATLAS OF GLACIERS OF THE WORLD and Field, 1975a, p. 575) and areas of greater than 500 km2. Alaska Range glaciers extend in elevation from above 6,000 m, near the summit of Mount McKinley, to slightly more than 100 m above sea level at Capps and Triumvi- rate Glaciers in the southwestern part of the range.
    [Show full text]
  • Chapter Four
    Chapter Four South Denali Visitor Center Complex: Interpretive Master Plan Site Resources Tangible Natural Site Features 1. Granite outcroppings and erratic Resources are at the core of an boulders (glacial striations) interpretive experience. Tangible resources, those things that can be seen 2. Panoramic views of surrounding or touched, are important for connecting landscape visitors physically to a unique site. • Peaks of the Alaska Range Intangible resources, such as concepts, (include Denali/Mt. McKinley, values, and events, facilitate emotional Mt. Foraker, Mt. Hunter, Mt. and meaningful experiences for visitors. Huntington, Mt. Dickey, Moose’s Effective interpretation occurs when Erratic boulders on Curry Ridge. September, 2007 Tooth, Broken Tooth, Tokosha tangible resources are connected with Mountains) intangible meanings. • Peters Hills • Talkeetna Mountains The visitor center site on Curry Ridge maximizes access to resources that serve • Braided Chulitna River and valley as tangible connections to the natural and • Ruth Glacier cultural history of the region. • Curry Ridge The stunning views from the visitor center site reveal a plethora of tangible Mt. McKinley/Denali features that can be interpreted. This Mt. Foraker Mt. Hunter Moose’s Tooth shot from Google Earth shows some of the major ones. Tokosha Ruth Glacier Mountains Chulitna River Parks Highway Page 22 3. Diversity of habitats and uniquely 5. Unfettered views of the open sky adapted vegetation • Aurora Borealis/Northern Lights • Lake 1787 (alpine lake) • Storms, clouds, and other weather • Alpine Tundra (specially adapted patterns plants, stunted trees) • Sun halos and sun dogs • High Brush (scrub/shrub) • Spruce Forests • Numerous beaver ponds and streams Tangible Cultural Site Features • Sedge meadows and muskegs 1.
    [Show full text]
  • Glenn Highway Tok Cutoff (GJ-125 to GJ-0) to Milepost a 160
    Map GLENN HIGHWAY • TOK CUTOFF Glenn Highway To Chicken and Eagle © The MILEPOST To Delta Junction (see TAYLOR HIGHWAY section) Key to mileage boxes ver (see ALASKA HIGHWAY section) Tanana Ri miles/kilometres G miles/kilometres Tanacross 5 from: la A L c A Swb T-Tok V-Valdez ia S K 2 Tok Map Location G-Glennallen ted A ® GJ-Gakona Junction A re A-Anchorage a R 2 A 1 Tetlin Junction J-Junction N HJ-Haines Junction Mount Kimball G T-0 a To Haines DJ-Delta Junction in 10,300 ft./3,139m E ch r w GJ-125/201km Junction Chisto cie G la A-328/528km (see ALASKA Principal Route Logged Key to Advertiser er HIGHWAY Services T iv DJ-108/174km C -Camping ok R section) Paved Unpaved R HJ-296/476km D -Dump Station iv ok Other Roads Logged d -Diesel er T G -Gas (reg., unld.) Tetlin I -Ice Lake Other Roads Scenic Byway L -Lodging M -Meals T Refer to Log for Visitor Facilities P -Propane Tok Cutoff ok Cu L R -Car Repair (major) na i Scale Sla R Mineral Lakes t iv t r -Car Repair (minor) e l 0 10 Miles r e S -Store (grocery) 0 10 Kilometres T -Telephone (pay) . t Cr t Bartell off (GJ-125 r Mentasta Lake e r e t T r. o v iv C i R Mentasta Lake S t ation k R Mentasta Summit n T-65/105km 2,434 ft./742m M a . i r E N d J-0 t C T A n e S I .
    [Show full text]
  • Conservation Prioritization of Prince of Wales Island
    CONSERVATION PRIORITIZATION OF PRINCE OF WALES ISLAND Identifying opportunities for private land conservation Prepared by the Southeast Alaska Land Trust With support from U.S. Fish and Wildlife Service Southeast Alaska Coastal Conservation Program February 2013 Conservation prioritization of Prince of Wales Island Conservation prioritization of Prince of Wales Island IDENTIFYING OPPORTUNITIES FOR PRIVATE LAND CONSERVATION INTRODUCTION The U.S. Fish and Wildlife Service (USFWS) awarded the Southeast Alaska Land Trust (SEAL Trust) a Coastal Grant in 2012. SEAL Trust requested this grant to fund a conservation priority analysis of private property on Prince of Wales Island. This report and an associated Geographic Information Systems (GIS) map are the products of that work. Driving SEAL Trust’s interest in conservation opportunities on Prince of Wales Island is its obligations as an in-lieu fee sponsor for Southeast Alaska, which makes it eligible to receive fees in-lieu of mitigation for wetland impacts. Under its instrument with the U.S. Army Corps of Engineers1, SEAL Trust must give priority to project sites within the same 8-digit Hydrologic Unit (HUC) as the permitted impacts. In the past 10 years, SEAL Trust has received a number of in-lieu fees from wetlands impacted by development on Prince of Wales Island, which, along with its outer islands, is the 8-digit HUC #19010103 (see Map 1). SEAL Trust has no conservation holdings or potential projects on Prince of Wales Island. In an attempt to achieve its conservation goals and compliance with the geographic elements of the Instrument, SEAL Trust wanted to take a strategic approach to exploring preservation possibilities in the Prince of Wales HUC.
    [Show full text]
  • An Ethnography of Old Harbor and Ouzinkie, Alaska
    BLACK DUCKS AND SALMON BELLIES An Ethnography of Old Harbor and Ouzinkie, Alaska by Craig Mishler Technical Memorandum No. 7 A Report Produced for the U.S. Minerals Management Service Cooperative Agreement 14-35-0001-30788 March 2001 Alaska Department of Fish and Game Division of Subsistence 333 Raspberry Road Anchorage, Alaska 99518 This report has been reviewed by the Minerals Management Service and approved for publication. Approval does not signify that the contents necessarily reflect the views and policies of the Service, nor does mention of trade names or commercial products constitute endorsement or recommendation for use. ADA PUBLICATIONS STATEMENT The Alaska Department of Fish and Game operates all of its public programs and activities free from discrimination on the basis of sex, color, race, religion, national origin, age, marital status, pregnancy, parenthood, or disability. For information on alternative formats available for this and other department publications, please contact the department ADA Coordinator at (voice) 907- 465-4120, (TDD) 1-800-478-3548 or (fax) 907-586-6595. Any person who believes she or he has been discriminated against should write to: Alaska Department of Fish and Game PO Box 25526 Juneau, AK 99802-5526 or O.E.O. U.S. Department of the Interior Washington, D.C. 20240 TABLE OF CONTENTS List of Tables ...............................................................................................................................iii List of Figures ...............................................................................................................................iii
    [Show full text]
  • 1953 the Mountaineers, Inc
    fllie M®��1f�l]�r;r;m Published by Seattle, Washington..., 'December15, 1953 THE MOUNTAINEERS, INC. ITS OBJECT To explore and study the mountains, forests, and water cours­ es of the Northwest; to gather into permanent form the history and traditions of this region; to preserve by encouragement of protective legislation or otherwise, the natural beauty of North­ west America; to make expeditions into these regions in ful­ fillment of the above purposes ; to encourage a spirit of good fellowship among all lovers of out-door life. THE MOUNTAINEER LIBRARY The Club's library is one of the largest mountaineering col­ lections in the country. Books, periodicals, and pamphlets from many parts of the world are assembled for the interested reader. Mountaineering and skiing make up the largest part of the col­ lection, but travel, photography, nature study, and other allied subjects are well represented. After the period 1915 to 1926 in which The Mountaineers received books from the Bureau of Associate Mountaineering Clubs of North America, the Board of Trustees has continuously appropriated money for the main­ tenance and expansion of the library. The map collection is a valued source of information not only for planning trips and climbs, but for studying problems in other areas. NOTICE TO AUTHORS AND COMMUNICATORS Manuscripts offered for publication should be accurately typed on one side only of good, white, bond paper 81f2xll inches in size. Drawings or photographs that are intended for use as illustrations should be kept separate from the manuscript, not inserted in it, but should be transmitted at the same time.
    [Show full text]
  • Guide to Camping in Denali's Backcountry
    National Park Service Denali National Park and Preserve U.S. Department of the Interior Backcountry Camping Guide Michael Larson Photo Getting Started Getting a Permit Leave No Trace and Safety This brochure contains information vital to the success of your Permits are available at the Backcountry Information Center Allow approximately one hour for the permit process, which Camping backcountry trip in Denali National Park and Preserve. The following (BIC) located adjacent to the Wilderness Access Center (WAC). consists of five basic steps: There are no established campsites in the Denali backcountry. Use paragraphs will outline the Denali backcountry permit system, the the following guidelines when selecting your campsite: steps required to obtain your permit, and some important tips for a safe and memorable wilderness experience. • Your tent must be at least 0.5 mi (0.8 km) away from the Step 1: Plan Your Itinerary recognition that you understand all backcountry rules and regu­ park road and not visible from it or other developed areas. Visit www.nps.gov/dena/planyourvisit/backcountry, and use lations. Violations of the conditions of the permit may result in Denali’s Trailless Wilderness • Camp on durable surfaces whenever possible such as gravel this guide, maps, as well as other available references to pre­ adverse impacts to park resources and legal consequences. Traveling and camping in this expansive terrain is special. The lack river bars, and avoid damaging fragile tundra. of developed trails, bridges, or campsites means that you are free plan several alternative itineraries prior to your arrival in the to determine your own route and discover Denali for yourself.
    [Show full text]
  • Geology of East-Central Alaska by Helen L. Foster, Terry E. C. Keith
    DEPARTMENT OF THE INTERIOR U.S. GEOLOGICAL SURVEY Geology of East-Central Alaska by Helen L. Foster, Terry E. C. Keith, and W. David Menzie* Open-File Report 87-188 This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey editorial standards and stratigrahic nomenclature. Any use of trade names is for descriptive purposes only and does not imply endorsement by the USGS. 1 Menlo Park, California East-Central Alaska Contributors and acknowledgements...........................................1 Introduction................................................................! Yukon-Tanana terrane............................ ...........................2 Yukon-Tanana terrane north of the Tanana River............................3 Stratigraphy............................................................3 Metamorphic rocks.....................................................3 Subterrane Yj (Northeastern Mount Hayes, southern Big Delta, southwestern Eagle, and northern Big Delta, southwestern Charley River, Livengood, and Fairbanks quadrangles)..............5 Subterrane ^^ (Circle, northern Big Delta, southwestern Charley River, Livengood, and Fairbanks quadrangles)......................? Quartzite and quartzitic schists (unit qq)......................7 Pelitic schist, quartzite, marble, and amphibolite (unit ps)....9 Eclogite and associated rocks (unit ec)........................10 Subterrane Y3 (Northern Big Delta, Fairbanks, southern Circle, Eagle, Charley River, and eastern Tanacross quadrangles)................11
    [Show full text]