Ledge of rhyolite on north slope of Middle Cone, NW 1/4 SE 1/4 sec. 7, T. 7 S., R. 42 E. Henry quadrangle; showing inclusions of basalt.
Dates
Date Taken
1912
Summary
Ledge of rhyolite on north slope of Middle Cone, NW 1/4 SE 1/4 sec. 7, T. 7 S., R. 42 E. Henry quadrangle; showing inclusions of basalt. Caribou County, Idaho. September 20, 1912. Plate 33-B in U.S. Geological Survey. Professional paper 152. 1927.
Summary
Ledge of rhyolite on north slope of Middle Cone, NW 1/4 SE 1/4 sec. 7, T. 7 S., R. 42 E. Henry quadrangle; showing inclusions of basalt. Caribou County, Idaho. September 20, 1912. Plate 33-B in U.S. Geological Survey. Professional paper 152. 1927.
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