The Charles S. Sprague and Benjamin Gill Papers on Nevada Mining (1904-1925) are comprised of various records from the mining companies owned and operated by businessmen Charles S. Sprague and Benjamin Gill who were active in the central Nevada boomtowns of Goldfield and Tonopah in the early twentieth century. Documents include correspondence, receipts and invoices, detailed records and copies of government legislative bills relating to the mining industry, and other business correspondence. Sprague's collection consists of his mining business correspondence dating from 1906 to 1925. Gill's papers are comprised of his business correspondence from 1916 to 1922.

The Nevada Mining Photograph Collection depicts mining activities, miners, and mining towns in Nevada from 1868 to 1937. The photographs primarily depict the towns of Tonopah, Nevada and Goldfield, Nevada, including mills, buildings, mine shafts, and panoramic views of the landscape. The photographs also depict Beatty, Lost City, Delamar, Candelaria, Winnemucca, Virginia City, Rhyolite, Elko, and Reno, Nevada. The photographs also include portraits of early settlers in Nevada, Native Americans, children, parades, celebrations, and funerals.