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- All Subjects: Bass, William Wallace, 1849-1933
- All Subjects: Pasture, Right of
- All Subjects: Panoramic photograph
- All Subjects: Insurance claims
- All Subjects: Map
- All Subjects: Water-power
- Member of: 100 Years of Grand: The Grand Canyon Centennial Project
Detailed map of Granite Gorge section of the Grand Canyon from the pamphlet titled, "Titan of Chasms: Grand Canyon of Arizona."
Letter from Alexander Vogelsang to Homer P. Snyder regarding land allocation for the Havasupai Tribe.
Letter from W. W. Bass to Carl Hayden regarding the right to his property.
Letter from W. W. Bass to Harry Welch protesting the proposed national park bill.
Letter to Carl T. Hayden regarding a water-power bill in effect for the Grand Canyon.
Letter from Henry Graves to Carl T. Hayden regarding the land ownership and grazing rights of the Havasupai.
Letter from Bernie Zachau to Carl Hayden regarding water power in the Grand Canyon.
Letter from Joseph J. Cotter to Carl Hayden regarding the use of water power and summer homes in the proposed park boundaries.
Letter from Carl Hayden to H. F. Robinson with attached notes from W. W. Bass and C. H. Gensler. Hayden solitices advice concerning the Havasupai Tribe needs for grazing and access to natural resources.
Letter from C. H. Gensler to Carl Hayden asking for a meeting in regards to the Havasupai pasture land in light of the national park bill.