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Drewes, Harald, 1979, Preliminary tectonic map of southeast Arizona: U.S. Geological Survey Open-File Report 79-0775, 2 sheets, scale 1:125,000.

Brooks, W.E., and Drewes, H.D., 1991, Analytical results and sample locality map from the Pedregosa Mountains, Arizona [Appendix to Geologic map and cross sections of the Pedregosa Mountains, Cochise County, Arizona, U.S. Geological Survey Map I-1827]: U.S. Geological Survey Open-File Report 91-0617, 14 p., 1 sheet, scale 1:48,000.

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