Box Elder Canyon. Converse County, Wyoming. 1870.

Album caption and index card: Box Elder Canyon affords a good section through the main ridge, being a much more regular gorge than the canyon of the La Prele. It is from 600 to 800 feet in depth, entirely of erosion, and so narrow that it is difficult to pass through it on foot, the side walls being perpendicular and sometimes overhanging. The predominating rocks are calcareous sandstones and some layers of quite fine limestones, with a great variety of texture. Converse County, Wyoming. 1870. Descriptive Catalog of the Photographs of the United States Geological Survey of the Territories, W. H. Jackson, Photographer, Second Edition, Illustrated, 1870 Series, page 13, Nos. 71, 72 caption, Box Elder Canon affords a good section through [...]