William H. Jackson: West from the Summit of Alpine Pass. c. 1880, Albumen print from wet collodion negative, 9.5 x 13 in. (241 x 330 mm), on original mount. w1540.

William Henry Jackson: Grand Canyon of the Yellowstone. 1872, Albumen print from wet collodion negative, 0 x 0 in. (0 x 0 mm), on original Hayden Survey mount. w1737.

William Henry Jackson: Fremont's Peak in the Wind River Gorge, Wyoming. c. 1875, Albumen print from wet collodion negative, 0 x 0 in. (0 x 0 mm), on original Hayden Survey mount. w1735.