Letter from Carl Hayden to Ed Hamilton expressing regret that he cannot do more to secure funds for the road between Grand Canyon Village and Rowe's Well.

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 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 Carl Hayden to F. R. Goodman regarding the construction of new roads.

Letter from Carl T. Hayden to P. J. Moran concerning the alignment of the road to Bright Angel Trail.

Letter with red pencil corrections from Carl T. Hayden to X. N. Steeves about the construction of an approach road to the canyon.

Letter from Carl T. Hayden to F. R. Goodman concerning the purchase of Bright Angel Trail and construction of an approach road to the park.