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- All Subjects: Mules
- All Subjects: Ashurst, Henry Fountain, 1874-1962
- All Subjects: Smith, George Otis, 1871-1944
- Member of: 100 Years of Grand: The Grand Canyon Centennial Project
Letter from George Otis Smith to Carl Hayden regarding mining rights in the Grand Canyon.
Letter from Carl Hayden to George Otis Smith asking his advice regarding the mining of asbestos deposits in the Grand Canyon.
Letter from George Otis Smith, U.S. Geological Survey to Carl Hayden regarding asbestos mining prospects in the Grand Canyon.
Black and white, silver gelatin print with some silvering. Circa 1930.
Black and white, silver gelatin print with some silvering. Circa 1930.
Black and white, silver gelatin print with some silvering. Circa 1930.
Black and white, silver gelatin print with some silvering. Circa 1930.
Letter describing three enclosures, a letter from F. M. Gold, Carl T. Hayden's reply to Gold's letter, and a copy of a bill introduced by Cameron.