National Geographic : 1951 Sep
© National Geographic Society 314 Kodachromes byJ.Baylor Roberts Indian Signs and Nature's Sculpture Enthrall North Dakota Hikers , Centuries of wind. rain, and snow havecarved sandstone into fantastic shapes inthesouth unit of Theodore Roosevelt National Memorial Park, near Medora. - Near Grenora, these girls inspect the mysterious Indian "Writing Rock." Carvings onthe10 ton boulder are believed to be the work of apeople long predating theearliest known tribesmen of North Dakota. According to legend, the symbols and pictures formerly changed toforetell coming events for medicine men, but have remainedstatic since white men moved thestone many years ago.