On one cold November morning in 1864, more than 200 Cheyenne and Arapaho tribal members, mostly women and children, were murdered in one of the worst massacres in American history.
quote from the 1864 Proclamation by Governor John Evans:
“I, John Evans, governor of Colorado Territory, do issue this my proclamation, authorizing all citizens of Colorado, either individually or in such parties as they may organize, to go in pursuit of all hostile Indians on the plains … to kill and destroy, as enemies of the country, wherever they may be found, all such hostile Indians.”
It does have significance to the indigenous communities.
"The new name holds significance because “the Arapaho were known as the Blue Sky people and the Cheyenne have an annual ceremony of renewal of life called Blue Sky,” "