Timothy H. O'Sullivan, 1871-1874 (survey), 1874 (expedition), 47. Alpine lakes and mountain scenery in the Cerro Blanco Mountains, Colorado, 13,000 feet above sea-level., [Wheeler Survey, Explorations and Surveys West of the 100th Meridian], Stereocard, detail, Etherton Gallery, LL/24801
Timothy H. O'Sullivan 1871-1874 (survey), 1874 (expedition) 47. Alpine lakes and mountain scenery in the Cerro Blanco Mountains, Colorado, 13,000 feet above sea-level. [Wheeler Survey, Explorations and Surveys West of the 100th Meridian]
