Mines and mineral resources -- Arizona
Found in 13 Collections or records:
Ryder Ridgway Collection
The Ryder Ridgway Collection includes correspondence, manuscripts, research files, printed matter, and family papers showing Graham County and Mormon history from 1799 to 1980.
Ryder Ridgway Photographs
The Ryder Ridgway Photograph Collection contains 800 photographs, lantern slides, oversized images, and panoramas. The majority of the images show the economic and social development of Southeastern Arizona (primarily the Thatcher and Safford areas in Graham County, but also including Bisbee, Morenci, Clifton, and Superior).
George U. Young Papers
The George U. Young Papers date from 1894 to 1922 and include correspondence, commercial documents, legal documents, articles, and news clippings describing Young's industrial, journalistic, and political activities. They are divided into four series.