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Collection: James Doyle Sell |
Place Keywords: United States, Arizona, Pima County, Twin Buttes - 7.5 Min, T18S R13E Sec 5 C, Sierrita Mts. physiographic area, Pima metallic mineral dist., Twin Buttes Open Pit, Pima246
Collection: Cambior Exploration USA |
Place Keywords: United States, Arizona, Pima County, Palo Alto Ranch - 15 Min, Johnny, Little Johnny Mines, T17S R10E Sec 23 SW, Sierrita Mts. physiographic area, Papago metallic mineral dist., Pima206
Collection: G. M. Colvocoresses |
Place Keywords: United States, Arizona, Pima County, Twin Buttes - 7.5 Min, Twin Buttes Open Pit, T18S R13E Sec 5 C, Sierrita Mts. physiographic area, Pima metallic mineral dist., Pima246
Collection: Edwin Noel Pennebaker |
Place Keywords: United States, Arizona, Pima County, Twin Buttes - 7.5 Min, Twin Buttes Open Pit, T18S R13E Sec 5 C, Sierrita Mts. physiographic area, Pima metallic mineral dist., Pima246