Detailed map of Granite Gorge section of the Grand Canyon from the pamphlet titled, "Titan of Chasms: Grand Canyon of Arizona."

Travel statistics for Grand Canyon National Park.

Press release comparing visitor attendance to the park by year. A 26 percent increase from 1923 to 1924 is noted.

Letter from Sanford Rowe and W. W. Bass to Carl Hayden requesting a re-examination on the proposed park boundaries as they are disadvantageous to current land owners surrounding the canyon.

Letter from W. W. Bass to Carl Hayden on the proposed park boundaries which he deems 'outrageous' and the effect such a bill could have on Hayden's reelection chances.

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 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 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 Horace M. Albright to Carl Hayden requesting a formal submission from Coconino County concerning the Bright Angel Trail.