Ashbaugh, Lewis E.Jones, FredOtten, George E.2018-04-162022-02-032018-04-162022-02-03https://hdl.handle.net/11124/172200Mine report no. 850.Includes illustrations, maps.Typescript (carbon copy).Collection of letters, reports, and maps on the Bates-Hunter group of mines and properties from the 1930s and 1961.Four Letters to Mr. H.M. Williamson, Sept. 30 and Oct. 2, 1930 / H.G. Shuck, Aetna Life Insurance Company; Louis J. Carter, County Court, Gilpin County; First National Bank, Central City, Colorado -- Bates-Hunter group of mines (March 20, 1961) -- Report on the Bates Bonanza mines, Gilpin County, Colorado (1931) / by Lewis E. Asbaugh -- Letter to Harry M. Williamson, May 29, 1937 / Fred Jones -- Six maps -- Excerpts from 2 unidentified articles -- Request for financing, Bates-Hunter Mine / George E. Otten.reportsengIn copyright - non-commercial use permitted (http://rightsstatements.org/vocab/InC-NC/1.0/).Mines and mineral resources -- Colorado -- Gilpin CountyMining claims -- Colorado -- Gilpin CountyGregory Mining District (Colo.)Bates Lode (Colo.)Bonanza Mine (Colo.)Bonanza Tunnel (Colo.)Text