Geologic map of the Twin Buttes Quadrangle, southwest of Tucson, Pima County, Arizona
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IMAP↗
Geology topics
J.R. Cooper
Publications and source records attributed to J.R. Cooper.
Reconnaissance geologic map of the west side of the Sierrita Mountains, Palo Alto Ranch Quadrangle, Pima County, Arizona
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Miscellaneous Field Studies Map↗
Late Paleozoic stratigraphy of central Cochise County, Arizona
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Professional Paper↗
San Pedro and Carnahan mines, New Placers mining district, Santa Fe County, New Mexico
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Open-File Report↗
Tungsten, antimony, and gold deposits near Stibnite, Yellow Pine mining district, Valley County, Idaho
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Open-File Report↗