7 albumen silver prints, unmounted, each approx. 12 1/2 x 9 1/2 in. Four prints are titled in the negative and two are credited to John K. Hillers, although all were taken by the photographer while working with the US Geological Survey under John Wesley Powell during the 1870s.

Scenes include: Little Fire Hole Falls, Yellowstone National Park, Wyoming, ca 1870s. -- The Domes, Rio Virgen, Utah, 1872. -- Royal Arches and Washington Dome, Merced River, Yosemite Valley, 1872. -- Three Graces, Yosemite Valley, California, ca 1872. -- [Z]ion's Peak, Rio Virgen, Utah, 1873. -- Ma-kun-to-wip Valley, Zion National Park, Utah, ca 1874. -- View In de Chelly Canyon, Looking West, Canyon de Chelly National Monument, Arizona, ca 1879.

Together, 7 albumen silver prints.

Provenance: Heritage, Philippe Halsman and Icons of the Twentieth Century: The Photography Collection of Frederich Voelker, 7 November 2020, Lots 11167-11173.