USGS Earth Science Photographic Archive digital file: hjk00759
Felix L. Mutschler (1969) describes this Powell Survey photograph as a view looking up Clearwater Canyon. Clearwater Canyon enters Cataract Canyon from the north about 26 miles downstream of the Confluence of the Green and Colorado rivers. Powell's Second Expedition visited the canyon in September 26-27, 1871. The skyline of the canyon consists of Cedar Mesa Sandstone (Early Permian), the lower part of the canyon is Hermosa Formation (Pennsylvanian).
