 | | Report (issue) | | PROSPECTS, LAWSON-DUMONT-FALL RIVER DISTRICT, CLEAR CREEK COUNTY, COLORADO By C. C. Hawley and Frank Baker...cited Mine descriptions « Lawson area, north of Clear Creek Larger mines in the Red Elephant group Boulder...prospects tabular summary Lawson area, south of Clear Creek Larger mines American Sisters mine--Bellevue-Hudson...48 51 Contents Page Lawson area, south of Clear Creek Continued Other mines Climax tunnel Cymric tunnel--...prospects tabular summaryDumont area, north of Clear Creek« Larger mines- - , , , Albro mine « « . Hiawatha |  | | Report (volume) | | production� Lead Zinc � Present production Recent mining act ivitScope of this report � Topography. Relief...General relations 72 � Mines in Iowa 72 � Dubuque district 72 History� � Geographic limits 73 � 73 Geologic...in Illinois � General statement 75 76 � Galena district � Waters mine 76 � Little Corporal mine 76 � 77...Sand Prairie district 78 � California-mine 78 � Peru or Black Jack mine 79 Elizabeth district. 80 � � Wishon...81 � Mines in Wisconsin 81 � Hazel Green-Benton district 81 � General 81 Hoskin and Kennedy mines� � • |  | | Report (volume) | | Notes on the gold lodes of the Carrville district, Trinity County, Cal., by D. F. MacDpnald...............account of the ore deposits of the Loon Creek district, Idaho, byJ. B.Umpleby............................... Geology of the St. Joe-Clearwater region, Idaho, by F. C. Calkins and E. L. Jones, jr.................................... Notes on the Antelope district, Nev., by F. C. Schrader................... Notes...Notes on the northern La Sal Mountains, Grand County, Utah, by J. M. Hill. Survey publications on gold |  | | Report (volume) | | concentration of metallic values from the ores of copper, zinc, lead, gold, silver, graphite, molybdenum...so successful. Allis-Chalmers Manufacturing Co. Mining Machinery Dept. OFFICES For Canadian MILWAUKEE...service from Superior Jaw Crusher Worthington mining equipment the from the standpoint of first cost...most wear, Worthington meets the needs of the mining industries with a complete line of products, from...to suit all of your requirements. Gt. Falls Type Copper Converter Worthington Pump and Machinery Corporation |  | | Report (volume) | | concentration of metallic values from the ores of copper, zinc, lead, gold, silver, graphite, molybdenum...Hydraulic TurbinpM MILWAUKEE, Metallurgical Machinery Mining Machinery Perforated Oil l-:imini-- Metals I'liiiiliini:...are getting the most in service from Worthington mining equipment — :the most from the standpoint of first...power consumption. Worthington meets needs of the mining industries with a complete line of products, from...to suit all of your requirements. Gt. Falls Type Copper Converter Worthington Pump and Machinery Corporation |  | | Journal (issue) | | A. Logan, District Mining Engineer C. Jenkins, Chief Geologist McK. Laizure, District W. Burling...Tucker, Reid J. Mining Engineer District Sampson, Assistant Mining Engineer District Engineer Chas...Chas. V. Averill, District Mining Engineer George John L. Gary, Mineral Technologist F. Bongard, Ore-Buyers'...C. Statistician and Curator O'Brien, Junior Mining Engineer (Librarian) Eldridge D. Drew, Geological...OF CONTENTS Page DISTRICT REPORTS OF MINING ENGINEERS 7 Sacramento Field District 7 San 7 Francisco |  | | Report (issue) | | the Challis Volcanics in the Twin Peaks Caldera, Idaho. USGS photograph by Frederick S. Fisher. Geology...Resource Assessment of the Challis I°x2° Quadrangle, Idaho Edited by Frederick S. Fisher and Kathleen M. Johnson...mineral resources in the Challis 7°x2° quadrangle, Idaho UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON...resource assessment of the Challis I°x2° Quadrangle, Idaho / edited by Frederick S. Fisher and Kathleen M....I19.16:P1525 1. Geology Idaho Challis Region. 2. Mines and mineral resources Idaho Challis Region. I. Fisher |  | | Journal (issue) | | TRIPS 8 KELLY, NEW MEXICO The story of a great mining bonanza by Mark C. Blazek and Richard N. Molsbee...ROCKHOUNDING AT DEVIL'S HEAD Collecting crystals in Colorado by Mrs. Wayne Henderson FEATURES 39 NEW AWARD...70001 Audra Snowe. Treasurer Rt I.. Box 880, Hot Springs. AR 71901 Amta Sh,er. Secretary 6315 Vanderbilt...State street In downtown Carlsbad, Calif. (Outside USA send $2.00 for catalOC) GEMS & MINERALS - 7 KEIJIJY... KEIJIJY, NEW ME~Iee the story of a great mining bonanza • Photo Data Various scenes of the remaining |  | | Journal (volume) | | machines, ventilating apparatus, emery wheels, mining and milling machinery. Particis being given to...employ a large foroe of skilled workmen. a Mining and Scientific Press. through the rotten boards...and Salt- habitants, nearly all of whom follow mining for an occupation. From Huatajia it is about peter...Juan."J [Written Huatajia, is the most productive mining-camp In my last letter (page 448 of Dec. 14tb)...brought from the Eist Umpqua The surinto the Myrtle creek placer mines. vey proves the scheme to be a feasible |  | | Book (edition) | | OF METALLURGY,” DE M. INST. L’ECOLE ‘f THE MINING SECOND REWRITTEN \ ros. F.R.S. C.2E. DES...GREATLY ENLARGED BY HENRY Ad AUTHOR PROFSSOR OF MINING OF AT THE WITH LOUIS, SoM.,, sl; O.peh C.Ge...the second, examples are given from the principal mining regions of the old and the new world. In this portion...Royal School of Mines, and formerly student at the Mining School of Clausthal. For a period extending over...because by the 1x in mining, fresh obliteration of those I hold that past mining records must be treated |
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