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Collection: ADMMR |
Place Keywords: United States, Arizona, Pima County, San Xavier Copper, San Xavier South, Twin Buttes - 7.5 Min, T16S R13E Sec 31 NW, Pima1141
Collection: ADMMR |
Place Keywords: United States, Arizona, Pima County, Twin Buttes, Twin Buttes - 7.5 Min, T18S R13E Sec 6 C, Pima metallic mineral dist., Sierrita Mts. physiographic area, Pima332
Collection: Walter E. Heinrichs, Jr. |
Place Keywords: United States, Arizona, Pima County, Twin Buttes - 7.5 Min, East Pima Mine, Mission Complex Including Ug, T16S R13E Sec 31 NW, Sierrita Mts. physiographic area, Pima metallic mineral dist., Pima230