Trove of Arizona Mining Data Put Online

A trove of Arizona mining data has been put online. “More than 20,000 files, maps, and reports contributed by dozens of exploration geologists and mining firms are now available. The website exposes more than 8,500 geologic and engineering reports; 6,800 maps – geologic maps, mining claim maps, maps with assays, plats, underground maps and cross sections; and 5,500 historic photographs dating from the 1890s to 2000. The reports comprise over 400,000 pages of materials.”

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