 | | Report (volume) | | Lincoln and Sanders Counties, Montana, and Bonner County, Idaho By U.S. GEOLOGICAL SURVEY and U.S. BUREAU...Lincoln and Sanders Counties, Montana, and Bonner County, Idaho By ROBERT L. EARHART, U.S. Geological Survey...Lincoln and Sanders Counties, Montana, and Bonner County, Idaho By M. DEAN KLEINKOPF and DOLORES M. WILSON...Lincoln and Sanders Counties, Montana, and Bonner County, Idaho By DAVID J. GRIMES and ROBERT L. EARHART...Lincoln and Sanders Counties, Montana, and Bonner County, Idaho By NICHOLAS T. ZILKA, U.S. Bureau of Mines |  | | Report (issue) | | Oregon and from out-of-state-for such information on mining properties has shown the present need for such...reasonable time information that is of value to the mining industry, that it is deemed best to issue this...alphabetical name and location list of all mines in the district, a general introductory statement covering the...geology of the state, an index map showing the mining divisions of the state as covered by the several...Statement Baker County 13 ____ 13 _ _______________ Baker Area Cable Cove District Connor Creek Area |  | | Report (issue) | | the Mescal Limestone in the Proterozoic Apache Group by intrusion of diabase sills about 1,100 Ma (Shride...corresponds chiefly to the outcrop area of the Apache Group and diabase sills. Although zones of asbestos alteration...and in thermal insulation. Feldspar The feldspar group of minerals are anhydrous aluminum silicates of...constituents of igneous rocks. The members of the group that find common use as industrial minerals are...that runs from Lake Mead in Mohave County southeastward to Cochise County. Five locations are listed in table |  | | Report (volume) | | A reconnaissance of the Cottonwood -American Fork mining region, tab, by B.S. Butler and G. F. Loughlin...________ Notes on the fine gold of nake River, Idaho, by J . . L Hill (publi hed Dec. 21, 1915) . . ...Preliminary report on t.he economic geology of Gilpin County, Colo., by E. S. Bastin and J. M. llill (publish...227 237 CELLA. EOU,S: itrate dcpo i in southern Idaho and eastern Oregon, by G. R. Mansfield (published..._____ .. __ . _.. ____. ___ a iterite in San Diego County, Cal., by W. T . chall er (published J an. 15, |  | | Report (volume) | | Bulletin 947-F COPPER DEPOSITS OF THE NIZINA DISTRICT, ALASKA BY DON J. MILLER WITH;AN INTRODUCTION...Kennecott mines.___________________________ __________ Regal mine______________ _ I _ _____ Green Butte mine...showing location of copper deposits of the Nizina district-_________ _____ __ __'__ In pocket 27. Sketch...district_____ _____ ___ _________ 96 13. Sketch map of the Regal mine, showing accessible underground workings (1943)...early days the principal route of approach to. the mining camps of the Chitina Valley was -a branch of the |  | | Report (issue) | | Kofa Mountains lies in the central part of Yuma County, Ariz. These mountains cover an area of approximately...Castle Dome Range are the nearest. The Kofa mining district, from which the mountains derive their name...profitable treatment. -The mine produced gold and silver bullion to the amount of $3,500,000, gold greatly...Mayhew and sold shortly afterward to the Golden Star Mining Co. for $350,000. Development was soon started...United States, approximately $1,100,000 in gold and silver. The deserted camp of Kofa centers around the King |  | | Report (issue) | | Metallurgist MARK EHLE, Mining Engineer J. B. TENNEY, Geologist G. R. FANSETT, Mining Engineer R. E. S. HEINEMAN..."The Geology and Mineral Deposits of Southern Yuma County" is the most pretentious bulletin of the kind that...in many parts of the county, it has not been easy to prospect southern Yuma County at all thoroughly, but...__________ . __ .____ _____ ______ __. General mining history_______________________ __________ ._______________...46 46 46 47 47 48 PART H.-MOUNTAIN RANGES AND MINING DISTRICTS .............. CHAPTER L-TRIGO MOUNTAINS |  | | Report (issue) | | CHROME GROUP PAGE GROUP WARDS GILLMORE-HALL REGAL GROUP HUNTER GROUP REX GROUP ROSS-ALLISON GROUP NATIONAL...NATIONAL GROUP ANSON LAKE MUSKRAT PAYORE NO.2 TAPPY LAC DU BOIS MOLYBDENUM ORE FAULT ORE NO.9 ORE NO.ll PAY...LITH MINES ZEEMEL,A.O. MANITOBA CHROMIUM MAC ROY MINING & EXPL. Z1YONE,J. BANNING,W.J. BANNING,W.J. BANNING...TOP O' THE WORLD BIRD LAKE CHROME LITH NO.12 DYKE GROUP COLOSSUS COLOSSUS NO.3 WENTO 50 50 50 50 50 50...HUDSON BAY EXPL. I; DEV. PETRA CHROMITE TANTALUM MINING CORP. TUDALE EXPLORATION MASKWA NICKEL CHROME MINE |  | | Book | | Geology of Manitoba CHAPTER 21 III Gold 37 Silver 72 Platinum 73 CHAPTER IV Copper 75 Nickel...gravel and sand. Silver. Native silver has the appearance of com- hill till β mercial silver, but is usually...usually blackened on the surface. composed of silver and sulphur. It is a> black mineral, very heavy and...like lead. Proustite or l'ght red silver ore is composed of silver, arsenic, and sulphur. It is of a...6 Fyrargyrite, or dark red silver ore, is dark red or composed of silver, antimony and sulphur. Dyscrasite |
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