Bent's New Fort was a historic fort and trading post along the banks of the Arkansas River on the Mountain Route branch of the Santa Fe Trail. William Bent operated a trading post with limited success at the site and in 1860 leased the fort to the United States government, which operated it as a military outpost until 1867. The site is privately owned today, and little remains of the building that once stood there.
Sand Creek Massacre National Historic Site recognizes the national significance of the massacre in American history, and its ongoing significance to the Cheyenne and Arapaho people and massacre descendants.