 | | Report (issue) | | MINERALS OF NEVADA MINERALS OF NEVADA Peer Hen By CASTOR oan eGORY.C.oFER DOCK NEVADA AND BUREAU... UNIVERSITY Reno & Las Vegas OF NEVADA PRESS GEOLOGY Nevada Bureau of Mines and Geology Special...University of Nevada Press, Reno, Nevada 89557 USA Copyright © 2004 by University of Nevada Press Photographs...otherwise noted Map of Mining Districts and significant mineral occurrences of Nevada by Nevada Bureau of Mines...Cataloging-in-Publication Data Castor, Stephen B, Minerals of Nevada / Stephen B. Castor and Gregory C. Ferdock.— Ist | | | Report (issue) | | MINERALS OF NEVADA MINERALS OF NEVADA STEPHEN B. CASTOR and G R EGOR Y C . F E R D OC K l NEVADA BUREAU...association with the UNIVERSITY OF NEVADA PRESS Reno & Las Vegas Nevada Bureau of Mines and Geology Special...University of Nevada Press, Reno, Nevada 89557 USA Copyright© 2004 by Uni versity of Nevada Press Photographs...Districts and si gnificant minernl occurrences of Nevada by Nevada Bureau of Mines and Geology All rights reserved...-Publ ication Dat,i Castor, Stephen B. Minerals of Nevada/ Stephen B. Castor and Gregory C. Ferdock.- rst |  | | Report (issue) | | Geology and Ore Deposits of the La Plata District Colorado By EDWIN B. ECKEL with sections by J. S. WILLIAMS...Geological Survey Board and the Colorado Metal Mining Fund UNITED STATES GOVERNMENT PRINTING OFFICE...the Animas River. _ _ _ Lithology in La Plata district _ _______ Permian system____________________________...part of district -_ _. ..____'_ Northwestern part of district--------Southern part of district. ______...region as a whole __________________ La Plata district _ . ___ _ ____-____ _ 22 23 23 24 24 26 26 26 |  | | Report (issue) | | REPORT 19i6 Nines and Prospects, Idaho Springs District Clear Creek and Gilpin Counties, Colorado Descriptions...Commission Introduction The Idoiho Springs mining district forms an important segment of tae Front Range...west, and southwest. The adjacent Central City district, which produced ores valued at more than $100...clearly the most important district in the mineral belt The Idaho Springs district from 1860 to 1959 produced... and zinc add value to the ores in most areas. Mining activity in the Idaho Springs and adjacent districts |
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