35 mm color slide depicting the Great Sand Dunes National Park and Preserve in Colorado, taken on October 13, 1963, by Ray V. Frost (1907-2003) . The photograph shows four people, likely friends and family of the photographer, running along the crest of a sand dune. The Sangre de Cristo Mountains appear in the background. The Great Sand Dunes National Park and Preserve is located near Alamosa in Saguache and Alamosa counties in Colorado.
Ray Vermillion Frost was a resident of Golden, Colorado and worked as a master brewer at Coors Brewing Company. He was also an avid photographer, traveler, skier, and mountaineer who photographed his road-trips, skiing, and hiking and climbing adventures throughout Colorado between circa 1930-1982.