Pompeys Pillar is one of the most famous sandstone buttes in America. It bears the only remaining physical evidence of the Lewis and Clark Expediti...
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This area memorializes the U.S. Army's 7th Cavalry and the Sioux and Cheyenne in one of the Indian's last armed efforts to preserve their way of li...
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The Upper Missouri River Break National Monument contains a spectacular array of biological, geological, and historical objects of interest. From F...
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Some of the world's best preserved fossils are found in the flat-topped ridges of southwestern Wyoming's cold sagebrush desert. Fossilized fishes, ...
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An astounding geologic feature that protrudes out of the rolling prairie surrounding the Black Hills. This site is considered Sacred to the Lakota ...
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