United States. National Park Service 
Devils Tower National Monument, Wyoming 

Devils Tower National Monument is in the Black Hills of northeastern Wyoming. The major attractions are the volcanic rock Tower and protected prairie dog communities. This handbook is published in support of the National Park Service’s management policies and interpretive programs at the park. Part 1 of the handbook gives a brief introduction to the park and its history; Part 2 takes a close look at the area’s natural history and, in particular, prairie dogs; and Part 3 presents concise travel guide and reference materials.