Thermopolis and Mowry shales near Bonanza, Standard drilling rig in foreground. Big Horn County, Wyoming. 1914.
Dates
Date Taken
1914
Summary
Thermopolis and Mowry shales near Bonanza, Standard drilling rig in foreground. Big Horn County, Wyoming. 1914. Plate 4-B in U.S. Geological Survey. Bulletin 656. 1917.
Summary
Thermopolis and Mowry shales near Bonanza, Standard drilling rig in foreground. Big Horn County, Wyoming. 1914. Plate 4-B in U.S. Geological Survey. Bulletin 656. 1917.
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