Sand Creek Massacre National Historic Site, Colorado
In an infamous incident, U.S. cavalry troops attacked a largely undefended Colorado encampment of the Cheyenne and Arapahoe tribes on Nov. 29, 1864, slaughtering up to 200 people.
In an infamous incident, U.S. cavalry troops attacked a largely undefended Colorado encampment of the Cheyenne and Arapahoe tribes on Nov. 29, 1864, slaughtering up to 200 people.