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| GEOLOGIC RECONNAISSANCE IN THE MATANUSKA AND TALKEETNA BASINS ALASKA BY SIDNEY PAIGE AND ADOLPH KNOPF...Physiographic development____. _. _________ _________ Matanuska Valley_______--___ _ _ _ __________ Talkeetna... Areal distribution______________._______.._ Matanuska field _________________________ 40 40 40 41 ...___________"______ Coking qualities.__________________________ Mining conditions_____________________________ Gold ______________...Description of localities______________________ Willow Creek________________________.___ Nelchina River____________ |
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| Director Bulletin 791 GEOLOGY OF THE UPPEK MATANUSKA VALLEY, ALASKA BY STEPHEN R. CAPPS WITH A SECTION ON...__-_-.-_-----_-_---General description of the district-__------_-___---__---_.___..___ Geography-.-_-___--..._______________________________________ 35 Matanuska formation._____________________________________...-------------_-_-_Igneous rocks of the upper Matanuska Valley, by J. B. Mertie, jr_.__._ Lower Jurassic...gas_________-_-__--___-________ Chickaloon and Coal Creek mines.__-_-____-_-_____________.. Conclusions _ |
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| Aviation Administration Facilities in Interior Alaska U.S. GEOLOGICAL SURVEY Open-File Report 95-341...Aviation Administration Facilities in Interior Alaska By Eppie V. Hogan and Joseph M. Dorava U.S. GEOLOGICAL...the FEDERAL AVIATION ADMINISTRATION Anchorage, Alaska 1995 U.S. DEPARTMENT OF THE INTERIOR BRUCE BABBITT...Copies of this report may be purchased from: District Chief U.S. Geological Survey 4230 University Drive......................... Description of interior Alaska............................................. Hydrology |
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| Mendenhall, Director Bulletin 907 GEOLOGY OF THE ALASKA RAILROAD REGION BY STEPHEN R. CAPPS UNITED STATES..._-._.. Cook Inlet-Susitna lowland.-----_----__--_---.-_---_-,-_-__ Copper-Susitna lowland._------------..._------------..___-..._.--_.-.-.-._ Alaska Range.______.___------__----_-_-__--_-_-__________ Tanana-Kuskokwim..._-_-_-.-_-_.--.------------__-------._--_..-._ The Alaska Railroad.__.____.___-_-______.______-__.___.._...history of the Talkeetna region._____________________ Alaska Range._______________ _________________________________ |
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| SMITH, Director Bulletin 668 THE NELCHINA-SUSITNA REGION ALASKA BY THEODORE CHAPIN WASHINGTON GOVERNMENT...60 Crooked Creek............... f ......... Main stream...................... Albert Creek..........,............. Other tributaries of Crooked Creek. Caribou Creek.......................... Little Nelchina... Tyone Creek.......................... Yacko Creek...................... Fourth of July Creek.................. Daisy Creek....................... Oshetna River......................... Index ILLUSTRATIONS |
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| mines, prospects and mineral occurrences throughout Alaska. Distribution of mineral occurrences in the Anchorage...Anchorage 1:250,000-scale quadrangle, southcentral Alaska This and related reports are accessible through...REPORT 98-599 ZUSGS science for a changing world Alaska Resource Data File INSET MAP 1 T^'-^-r \ _ -...UAN°22ANOe Alaska Resource Data File AN001 Site name(s): Independence Site type: Mine ARDFno.: AN001...accuracy: West of Fishhook Creek, marked with an adit symbol and labeled 'Independence Mine' on the Anchorage |
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| PAPER 70 J..,l ' THE MOUNT· McKINLEY REGION, ALASKA . BY ALFRED H. BROOKS WITH DESCRIPTIONS OF THE..... _.... _...... __ .... _.. ______ . _.... _ Susitna lowland ..... __ ~ __ . _... ~ _.. ___ . _.. _...• ~ .... _. ___ . _............... ~ _... ___ _ Alaska Range __ . _• _....... ~ .. _............ ~ .....____ ..... __ . _ Outline of geology of central Alaska .. ___ . _. _. ____ .. ___ . _. _. __ .. _______........ -;, ...... _... ~. Schistose rocks of Willow Creek basin ......... _...... _..... _....... _.. |
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| systematic investigation of the mineral resources of Alaska by the Geological Survey has yielded a large amount...geologic features of the metalliferous deposits of Alaska, using the results obtained by the many geologists...purely scientific results which have been achieved. Alaska is rich in metallic wealth. Its lode' and placer...The rapid advance of the mining 1 Brooks, A. H., The coal resources of Alaska: Twenty-second Ann. Kept... The Alaska coal fields: Bull. U. S. Geol. Survey No. 314,1907, pp.40-46 Brooks, A. H., Alaska coal and |
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| Gypsiferous Deposits on Sheep Mountain Alaska GEOLOGICAL SURVEY BULLETIN 989-C GYPSIFEROUS DEPOSITS...DEPOSITS ON SHEEP MOUNTAIN, ALASKA By RICHARD A. ECKHART ABSTRACT Gypsum-bearing rocks crop out in Gypsum...Jacket Gulches, on Sheep Mountain, which is about 90 miles northeast of Anchorage, Alaska. The gypsiferous...of Jurassic age which comprise the bulk of the mountain. Near-surface samples of the gypsiferous rock...as much as 50 percent. Quartz, alunite, clay, sericite, and pyrite are contaminating constituents of |
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| INTRODUCTION. The northern foothills of the Alaska Range have been widely traversed by prospectors...as a permanent supply point. In 1903 gold-placer mining commenced in the Bonnifield country, about 60 miles...area are the Alaska Range and the Tanana Flats. The Alaska Range in this, part of Alaska trends round...region, crosses Cantwell River just south of Healy Creek, and extends northeastward to the south of the Bonnifield...occupy large areas in the northern foothills of the Alaska Range. They were observed throughout the area between |
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| Metalliferous Lode Deposits of Alaska By HENRY C. BERG and EDWARD H. COBB . G E O L O G I C A L S...A n inventory of the mines and )- grosfiects of Alaska and their ' f geologic settings UNITED STATES...acknowledgments--- - - - - - ----- - - - -- - -- 4 Alaska Peninsula region- - - - - - - - -- - - - - - -.... . . . . . . . . . . . . . . . 14 Cook Inlet-Susitna River region- - - - - - - - - - - _ --- - - - -...- - - _ - - - _ - - - - - - - - - - 16 Redoubt district--- - - - - - - - - - - - - - - - - - - - - - - |
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| Director Bulletin 776 THE MESOZOIG STRATIGRAPHY OF ALASKA BY GEORGE C. MARTIN WASHINGTON GOVERNMENT PRINTING...McCarthy formation__________ . Nabesna-White River district-______ . General featuresShale and volcanic rocks... . Limestone and shale of Cooper Pass . Upper Susitna Valley____ _____ _ . General features _ . Basic..._______ Limestone_____________________________ Alaska Peninsula___________________________ Greenstone...Island_____________ Gastineau volcanic group of the Juneau district., _____ Yukon Valley_____ __________ Limestone |
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| Director Bulletin 745 THE KOTSINA-KUSKULANA DISTRICT ALASKA BY FRED H. MOFFIT AND J. B. MERTIE, JR....Mofflt and J. B. Mertie, jr___________ SL History of mining development _ _ ____ 82 Character of the copper..._ Peacock claim __________ _____ _ _______ Mountain Sheep claim _ . Forget-me-not claim _ _ Blue Bird...__ _ Amy Creek ___ _ Rock Creek________________________ _ Lime Creek-_______ Roaring Creek ____ _ ___...___ __ Peacock Creek ______ __ _ _______ _ Shower Gulch_____ ___ Surprise Creek____ _ True Blue claim____ |
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| +06'4+14 75 )'1.1)+%#. 5748'; ,WPGCW #NCUMC Alaska Resource Data File Juneau quadrangle Descriptions...mines, prospects and mineral occurrences throughout Alaska. o o o o o o o o Distribution of mineral...occurrences in the Juneau 1:250,000-scale quadrangle, Alaska This and related reports are accessible through...the U.S. Government. OPEN-FILE REPORT 03-456 Alaska Resource Data File JU001 Site name(s): Unnamed...accuracy: This occurrence is on the east slope of Red Mountain at an elevation of about 1,800 feet, approximately |
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| mines, prospects and mineral occurrences throughout Alaska. 153 00 63 00 TL004 TL005 TL006 * (i|:4 TL069...Talkeetna 1:250,000-scale quadrangle, southcentral Alaska This and related reports are accessible through...110631 Anchorage, AK 99511 Location of map area in Alaska This report is preliminary and has not been reviewed...REPORT 99-139 ZUSGS science for a changing world Alaska Resource Data File TL001 Site name(s): Boedeker;...the Hidden River, a short distance east of Swift Creek. The prospect is at an elevation of 4000 feet in |
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| with the STATE OF COLORADO and the COLORADO METAL MINING FUND UNITED STATES GOVERNMENT PRINTING OFFICE...-____-_-____-___________ Deposits in the Alma district...-____________________________ Distribution ... tunnel-_------_---__---_---_ -__--_-____-Ophir mine. _______________________ _,_ _ ___!_____ _______...northwest of London Mountain...... Area between London Mountain and New York Mountain _.____Extent of p...______-___-_.-_'_ _:_- ^ _ ^ _______'_-.___ _--Hard-to-Beat mine.________.___--_._.___-__i ___-_-L_-__-_Oliver Twist |
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| ________________ Upper Paleozoic(?) rocks near Sheep Mountain______..___-__._-__._Marble__---_______________...-__-__-____-__._--__.-___-____--_--_-_----____-_-----O'Brien Creek Formation_____________________________________ Definition..._______________________________________ Scatter Creek Rhyodacite_--_______-________--_-______^________...55 Relations to Sanpoil Volcanics and O'Brien Creek Formation. _ 57 Age and correlation.__--____-...Klondike Mountain Formation._----_____-__-_-_-_-_________________-___________ Klondike Mountain Formation |
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| Riverside Ave .. • ANCHORAGE, Alaska--Rm. 101, 4230 University Dr. • ANCHORAGE, Alaska--Federal Bldg, Rm. E-146...25286 Denver, CO 80225 Residents of Alaska may order maps from Alaska Dlstrlbutlon Section, U.S. Geological...Distribution. Bldg. 810, Federal Center • FAIRBANKS, Alaska--New Federal Bldg., 101 Twelfth Ave. Chapter...JEROME WAEGLI The Alaska-Juneau and Treadwell Lode Gold Systems, Southeastern Alaska By THOMAS D. LIGHT...Jerome Waegli. The Alaska-Juneau and Treadwell Lode gold systems , southeastern Alaska 1 by Thomas D. Ught |
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| _-----_-_-_-_-_------.___----------------Boyd Mountain fault._____________________j.__________ Siegel...fault-__--___---__-----_-_____--__-_----------Verde Creek fault-__-__--__--____-____-__-_-_-._-----Campground...fault.____________________________________ Dry Creek fault__-___._.__._.._..._.._......_._._.__.Other...deposits_________________________________________ Iron Mountain mine_--_-____--_---_-_-____--_-------_----Nancy...deposits________________________________________ Little Pittsburg mine ______________________________________ Copper d |
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| Express Limestone Member___________________ Bilk Creek Sandstone Member______________________ Marlinem...laccolith___________________________________________ Cross Mountain anticline___________________________________ Black...claims_______________________________________ Mount Wilson mining district_______________________________ Morning...the Iron Springs district. 6. Map showing patented claims in the Mount Wilson district. Page. FIGURE ...from Morning Star mine, 1904-14______________ 7. Production from Silver Pick mine, 1882-98_ _ __ __ _ |
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| assisted by W. H. Emmons and L. H. Woolsley. Engineer Mountain 1907-09 Whitman Cross, assisted by (folio 171)...topographic maps covering much of the area. Many of the mining men and other residents of the San Juan region...__-___________-___----_ Quartz-mica schist of Mesa Creek.____ Dubois greenstone-_____________________ Amphibole...material._ Intrusive rocks of probable Beidell Tracy Creek quartz latite ____________ Petrography. __________________...-----------------.-------The V Mountain laccolith.__________ Squaretop Mountain laccolith._______ Age of the |
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| NONMETALS EXCEPT FUELS THE NEW WORLD OR COOKE CITY MINING DISTRICT, PARK COUNTY, MONTANA By T. S. LOVERING f ...the pioneer days of Montana the New World mining district was regarded as one of ,its most promising...from the district, but little information has hitherto been available as to the geology and mining. To supply...supply this need the district was studied and mapped during the summers of 1922 and 1923. FIELD WORK AND... was devoted to a study of the geology of the district. About six weeks in July and August, 1925, was |
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| GOLD BELT, ALASKA BY ARTHUR C. SPENCER AND A RECONNAISSANCE OF ADMIRALTY ISLAND, ALASKA BY WASHINGTON...1906 OFFICE CONTENTS. THE JUNEAU GOLD BELT, ALASKA, BY ARTHUR C: SPENCER. Page Introduction........................... 7 Climate of southeastern Alaska......................................... -^ 7............... Geologic features of southeastern Alaska.................................. General statement...Distribution of metallic mineralization in southeastern Alaska............... Introduction................... |
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| crystalline rocks____-_________.._____________ Alaska._____-_____-__________---_-_--___-____-_____-_________..._________--____-_---_-------___-_--------_----_______ Ajo district.-_--_.____---------______--_-_--__---_______ Oatman...______--__-__---_____----_____-__-___-___________ Bonanza district._________________________________________ Breckenridge...region___________________________________________ Spanish Peaks district.____________________________________ Summitville...________________________________________ Edwardsburg district._____________________________________ 11 11 12 |
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| os eua come] a.Batis aS i Ce. = of Alaska Ernest Wolff ALASKA Eastofof Green! Gre nwich MAP 170°...—GEOLOGICAL SURVEY. WASHINGTON, DC, MA ITOT ALASKA MAP A "sO 4 * « PSI1 TOA He REA LA Ope e...University of Alaska ERNEST WOLFF Formerly, Research Associate University of Alaska With Contributions...Formerly, Professor of English, University of Alaska Printed in the United States of America By Edwards...panertoes Fs, PREFACE To grow and prosper, Alaska must develop sources of products which can be exported |
