Sand Creek massacre

Black Kettle

(Wikipedia) The Sand Creek massacre (also known as the Chivington massacre, the Battle of Sand Creek or the massacre of Cheyenne Indians) was a massacre in the American Indian Wars that occurred on November 29, 1864, when a 675-man force of Colorado U.S. Volunteer Cavalry attacked and destroyed a village of Cheyenne and Arapaho in southeastern Colorado Territory, killing and mutilating an estimated 70–163 Native Americans, about two-thirds of whom were women and children.
The location has been designated the Sand Creek Massacre National Historic Site and is administered by the National Park Service. Continued