University of Arizona

Students, faculty, staff, and the public are now welcome to visit Special Collections without an appointment from 9 am to 4 pm, Monday through Friday. 

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  1. Records of the Twin Buttes Mining and Smelting Company

    The Twin Buttes Mining and Smelting Company was a mining operation in the Twin Buttes area of Pima County, AZ that was subsequently leased or owned by Bush-Baxter, Glance Mining Company, Midland Copper Company, San Xavier Extension Copper Company. In ...

    castanoe - 2020-09-08 16:22