Filtering by
- All Subjects: Eakin, John Ross, 1879-1946
- All Subjects: Grazing
- All Subjects: Havasupai Tribe of the Havasupai Reservation, Arizona
- All Subjects: Automobile travel
- All Subjects: Map
- All Subjects: Smith, George Otis, 1871-1944
- Member of: 100 Years of Grand: The Grand Canyon Centennial Project
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Detailed map of Granite Gorge section of the Grand Canyon from the pamphlet titled, "Titan of Chasms: Grand Canyon of Arizona."
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Press release comparing visitor attendance to the park by year. A 26 percent increase from 1923 to 1924 is noted.
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Travel statistics for Grand Canyon National Park.
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Letter from Alexander Vogelsang to Homer P. Snyder regarding land allocation for the Havasupai Tribe.
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Letter from C. H. Gensler, Havasupai Agency to Carl Hayden regarding boundary lines.
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Letter from Carl T. Hayden to C. H. Gensler, Havasupai Indian Reservation, regarding Hualapai and Cataract Canyons geography.
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Letter from George Otis Smith, U.S. Geological Survey to Carl Hayden regarding asbestos mining prospects in the Grand Canyon.
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Letter from Carl Hayden to George Otis Smith asking his advice regarding the mining of asbestos deposits in the Grand Canyon.
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Letter from George Otis Smith to Carl Hayden regarding mining rights in the Grand Canyon.