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- All Subjects: Grand Canyon National Park (Ariz.)
- Creators: Atchison, Topeka, and Santa Fe Railway Company
- Creators: Gavin, J. E.
- Creators: Albright, Horace M.
- Creators: Grand Canyon National Park
- Status: Published
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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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Letter from J. E. Gavin to Louis C. Cramton regarding the Bright Angel Trail controversy, including newspaper clipping.
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Letter from J. E. Gavin to Jesse L. Boyce regarding the TNT storage in the Grand Canyon. Gavin states that although acting director Arno B. Cammerer is confident in Superintendent Crosby's report concerning the legitimacy of the storage, he will continue to investigate the matter to ensure public safety.
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Letter from J. E. Gavin on behalf of Carl Hayden writing in regards to the insurance claims filed with the National Park.
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Letter from Horace M. Albright to Carl Hayden requesting a formal submission from Coconino County concerning the Bright Angel Trail.