Conservation efforts and reintroduction of the American bison (Bison bison) in Colorado began in Denver during the early twentieth century. By that time, the bison population had declined precipitously since the mid-nineteenth century because of…

Eastern Colorado, bordered by the foothills of the Rocky Mountains on the west, Kansas on the east, and the corners of Nebraska and Oklahoma, constitutes a portion of the Great Plains. It is the agricultural heartland of Colorado. This semiarid region is…

An earth lodge is a distinctive type of timber-frame house built from the early 1400s to the late 1800s by a dozen different Indigenous nations on the Great Plains. These massive circular structures, often encompassing 1,500 square feet or more, featured…

The Plains Woodland period covers approximately a thousand years of Colorado prehistory across a large portion of the state. Plains Woodland describes the groups of people occupying much of the western plains from present-day Nebraska and Kansas, west of…

Signed in 1851, the Treaty of Fort Laramie was made between the US government and several Indigenous nations of the Great Plains—including the Cheyenne, Arapaho, and Lakota—who occupied parts of present southern Wyoming and northern Colorado. The treaty…