This official color handbook by the National Park Service includes a history, travel guide, and references on the volcanic rock tower and projected prairie dog communities within the Devils Tower National Monument in the Black Hills of Wyoming.
This small book imparts a lot of information about the natural and human history of Devils Tower. I’ve visit the National Monument a couple of times and appreciate all I learned from this read. I actually found the pages about prairie dogs fascinating. Learned more about prairie dogs than I ever knew possible.