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Collection: ADMMR |
Place Keywords: United States, Arizona, Pima County, Twin Buttes - 7.5 Min, T16S R12E Sec 36 NE, Sierrita Mts. physiographic area, Pima metallic mineral dist., Palo Verde, Mission Extension, Pima233
Collection: ADMMR |
Place Keywords: United States, Arizona, Pima County, Twin Buttes - 7.5 Min, T17S R12E Sec 10 C, Sierrita Mts. physiographic area, Swastika Mine, Swastika Copper And Silver, Pima238