In 1871, John Wesley Powell appointed seventeen year-old Frederick Samuel Dellenbaugh as artist and assistant topographer for his second expedition down the Colorado River.

Search over 800 digitized photographic prints, relief halftones, postcards, negatives, tintypes and pen and ink drawings originally collected by Dellenbaugh, created between 1871 and 1934 from the Frederick Samuel Dellenbaugh collection of photographs and drawings of the Colorado River region, WA Photos 271.

Our first camp, Green River, May 1871

Frederick Samuel Dellenbaugh, 1872, tintype