National Geographic : 1932 Jul
THE NATIONAL GEOGRAPHIC MAGAZINE Photograph by Laura Gilpin FOOTPRINTS IN THE SANDS OF A MINIATURE DESERT Near sunrise and sunset, when shadows bring out the sharp edges of the vast piles of sand, the Great Sand Dunes Monument is at its best. Pike was the first American to write of the San Luis dunes. He and his party saw them in 1807. The dunes shift continually, but are always confined to a relatively small area near the foot of the mountains (see, also, page 17). ~"P ~~ ;I1F~ I z. :"