Timothy H. O'Sullivan 1871-1874 (survey), 1873 (expedition) 24. Central portion of Canon de Chelle, New Mexico. this Canon is one of the most remarkable in the west, and is noted for its beauty. The walls are of Red Sand-stone, nearly perpendicular, and at this point are 1,200 feet in height. [Wheeler Survey, Explorations and Surveys West of the 100th Meridian]
