Devils Tower National Monument, Wyoming
1997
Raymond Gehman

"Christened [prairie] dogs by settlers because of their high-pitched alarm calls, these members of the squirrel family live in burrows that can be 15 feet [4.6 meters] deep and more than a hundred feet [30 meters] long."

(Text from "The Vanishing Prairie Dog," April 1998, National Geographic magazine)

(Photograph shot on assignment for, but not published in, "The Vanishing Prairie Dog," April 1998, National Geographic magazine)

http://www.nationalgeographic.com