Assessment of undiscovered deposits of gold, silver, copper, lead, and zinc in the United States A Portable Document Recompilation of USGS OFR 96-96 and Circular 1178
$68 · Offered by Crossroads Books · No longer available
Washington, D. C. U. S. Dept. of the Interior, U. S. Geological Survey, 2002. CD-ROM. Hard plastic case with covers. This publication contains the results of a national mineral resource assessment study. The study (1) identifies regional tracts of ground believed to contain most of the nation's undiscovered resources of..... More
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