Letter from Carl Hayden to H. F. Robinson with attached notes from W. W. Bass and C. H. Gensler. Hayden solitices advice concerning the Havasupai Tribe needs for grazing and access to natural resources.

Letter from C. H. Gensler to Carl Hayden asking for a meeting in regards to the Havasupai pasture land in light of the national park bill.

Black and white print of man overlooking the canyon, with handwritten annotations and arrows identifying trail sites, " Mi. 38", "Dam Site" and "Mi. 37." Circa 1920-1929.

Black and white print with typescript annotation, "Upstream view of the canyon of Colorado River at the bridge site near Lees Ferry, Arizona." Handwritten annotation, "Exhibit I." Circa 1920-1929.

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."

Black and white, mounted print with handwritten annotation, "1 Pres Butler of Columbia Col; 2 Paul Morton Vice P. of Santa Fe; 3 Pres Roosevelt; 4 Gov Brodie; 5 Mrs Lemke; 6 Mrs Smith." Very likely No. 4 from this series.