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- All Subjects: Ryder Ridgway Photographs
- All Subjects: Smith, George Otis, 1871-1944
- All Subjects: Watchtower at Desert View (Ariz.)
- 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.
Color postcard titled, "H-4452 The Watchtower at Desert View, Grand Canyon National Park, Arizona." Circa 1930-1939.
Color postcard titled, "East From (Hopi) Rowe Point."
Color postcard, 3 inch x 5 inch, titled, "5424." The Grand Canyon of Arizona. Circa 1910.
Color postcard titled, "6326 Grand Canyon of Arizona, From Jacob's Ladder."
Color postcard titled, "8797 El Tovar Grand Canyon of Arizona." Handwritten annotation, "Dear Miss Oakley, I expect to leave here Tuesday A.M. Have had the time of my life. Lovingly, M."