Group from Survey of Colorado at Camp, by Unknown, 1873, Smithsonian Archives - History Div, A group of men from the Hayden Survey Colorado expedition of 1873 sit on logs around a table for a meal. This is the party, that made the first ascent of the "Holy Cross" Mountain, Eagle County, Colorado. Pictured from left to right are Ferdinand Vandeveer Hayden, leader of the Survey, James H. Stevenson, William S. Holman, S. C. Jones, James Gardner, W. D. Whitney and William H. Holmes..