Letter from Arno B. Cammerer to Carl Hayden denying his request for funding to repair the road between Grand Canyon Village and Rowe's Well.

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 Arno B. Cammerer to Carl Hayden regarding the storage of dynamite in Shoski Canyon. Written in red pencil at the top, "My dear Jesse, For your(?) further information, Jack."

Letter from Arno B. Cammerer to Carl Hayden on the investigation by Superintendent Crosby regarding the TNT stored in the Grand Canyon.

Letter from Arno B. Cammerer to Carl Hayden informing him of the removal of the dynamite from Grand Canyon Village to a point near Rowe Well.

Black and white, wide angle, mounted print taken from the rim with handwritten annotation, "10", circa 1903.

Black and white, wide angle, mounted print taken from the rim with handwritten annotation, "9", circa 1903.

Black and white, wide angle, mounted print taken from the rim with handwritten annotation, "8", circa 1903.

Black and white, wide angle, mounted print with handwritten annotation, "7 Grand Canyon of Colorado River at Bright Angel Trail May-6-03."