Geologic map of the North Keystone mine, Copperopolis, California
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Open-File Report↗
SEARCH · Geology Reports
Results for “Mining Geology”
Search indexed USGS publications on groundwater, aquifers, geologic maps, mineral resources and earthquakes. Explore source records by subject and place.
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Geology of the International No. 4 mine and of the adjoining accessible parts of the No. 3 and No. 5 mines, Edwards Township, St. Lawrence County, New York
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Open-File Report↗
Geologic map and sections, Burt mica mine, Custer County, South Dakota
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Open-File Report↗
Geologic maps of lead-zinc mines, Kokomo district, Summit County, Colorado
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Open-File Report↗
Geologic map of the Black Hawk mining district, Grant County, New Mexico
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Open-File Report↗
Geologic maps of the Ord quicksilver mine area, Mazatzal Mountains, Arizona
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Open-File Report↗
Surface and underground geologic map of the DeCourcy Mountain mine, DeCourcy Mountain area, central Kuskokwim region, Alaska
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Open-File Report↗
Geologic map of the Oreana tungsten mine, Pershing County, Nevada
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Open-File Report↗
Geologic reconnaissance of the Uzunpinar iron mine and vicinity, Kayseri Province, Turkey
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Open-File Report↗
Index of metallic mineral deposits of Alaska compiled from reports in open files of the U.S. Geological Survey and U.S. Bureau of Mines through 1972
This index supplements a similar index of published reports (Cobb, 1973) currently being processed for formal publication. Inasmuch as many open-file reports are preliminary and eventually superseded by final published reports, it is inappropriate to include references to open-file reports in a permanent index. As most preliminary reports are of immediate, although temporary, value, it is desirable that references to them be compiled and made available for general use through the medium of open-file release. This index is designed to fill that need.
Open-File Report↗
Geology of the Thompson Creek coal mining area, Pitkin County, Colorado, as related to subsurface hydraulic mining potential
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Open-File Report↗
Underground geologic maps of the Golden Wonder Mine, Lake City, Hinsdale County, Colorado
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Open-File Report↗
Program review and status report; mineral surveys by the Geological Survey and the Bureau of Mines of certain lands managed by the Bureau of Land Management
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Open-File Report↗
Geology of the Rainy Day uranium mine, Garfield County, Utah
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Trace Elements Investigations↗