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- All Subjects: Roads
- All Subjects: Crosby, Walter Wilson, 1872-1946
- All Subjects: South Kaibab Trail (Ariz.)
- Member of: 100 Years of Grand: The Grand Canyon Centennial Project
Letter from M. J. Riordan to Carl Hayden expressing his opposition to the federal government's takeover of Bright Angel Trail.
Letter from Carl Hayden to M. J. Riordan expressing his support for Coconino County in turning over the Bright Angel Trail to the federal government.
Letter from Horace M. Albright to Carl Hayden requesting a formal submission from Coconino County concerning the Bright Angel Trail.
Letter from Carl Hayden to Stephen Mather regarding Coconino County's willingness to dispose of Bright Angel Trail as long as the funds acquired would go to building a road between Old Trails Highway at Maine to the Grand Canyon.
Letter from F. R. Goodman to Carl Hayden expressing Coconino County's interest in handing over Bright Angel Trail to the government provided a sufficient amount of money is appropriated to build a road from Maine to the Grand Canyon.
Letter from E. C. Finney to Carl Hayden regarding the cost of the Bright Angel Trail and an improved road between the town of Maine and the Grand Canyon.
Letter from Carl Hayden to F. R. Goodman regarding the construction of new roads.
Letter from Arno B. Cammerer to Carl Hayden on the investigation by Superintendent Crosby regarding the TNT stored in the Grand Canyon.
Letter from Jesse L. Boyce to Carl Hayden stating that the Director of the National Park Service will order Colonel Crosby to remove the dynamite from the park.
Letter from Arno B. Cammerer to Carl Hayden reiterating the safe nature of the dynamite storage.