Eroded Buttes of the North Dakota Badlands Near Medora

These layered buttes sit within the Little Missouri Badlands, part of the Little Missouri National Grassland in western North Dakota. The banded rock exposed here records roughly 60 million years of sediment deposited by ancient rivers and swamps during the Paleocene epoch, including beds of lignite coal, clay, and sandstone. Erosion from wind and the Little Missouri River has carved the soft rock into the buttes and ridges typical of this terrain. Theodore Roosevelt ranched in this region during the 1880s, an experience that later shaped his views on conservation, and much of the surrounding land is now preserved within Theodore Roosevelt National Park.

Taken July 2015