Tungsten deposits in the Boriana district and the Aquarius Range, Mohave County, Arizona
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Bulletin↗
Geology topics
S. W. Hobbs
Publications and source records attributed to S. W. Hobbs.
Tungsten deposits of Copper Mountain, Fremont County, Wyoming
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Open-File Report↗
Nickel deposits near Riddle, Douglas County, Oregon
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Open-File Report↗
Nickel deposits near Mount Vernon, Skagit County, Washington
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Open-File Report↗