Sand Creek Massacre - Background

Background

By the terms of the 1851 Treaty of Fort Laramie between the United States and seven Indian nations, including the Cheyenne and Arapaho, the US recognized that the Cheyenne and Arapaho held a vast territory encompassing the lands between the North Platte River and Arkansas River and eastward from the Rocky Mountains to western Kansas. This area included present-day southeastern Wyoming, southwestern Nebraska, most of eastern Colorado, and the westernmost portions of Kansas.

In November 1858, however, the discovery of gold in the Rocky Mountains in Colorado, then part of the Kansas Territory, brought on the Pikes Peak Gold Rush. There was a flood of European-American migrants across Cheyenne and Arapaho lands. They competed for resources and some settlers tried to stay. Colorado territorial officials pressured federal authorities to redefine the extent of Indian lands in the territory, and in the fall of 1860, A.B. Greenwood, Commissioner of Indian Affairs, arrived at Bent's New Fort along the Arkansas River to negotiate a new treaty.

On February 18, 1861, six chiefs of the Southern Cheyenne and four of the Arapaho signed the Treaty of Fort Wise with the United States, in which they ceded most of the lands designated to them by the Fort Laramie treaty. The Cheyenne chiefs included Black Kettle, White Antelope (Vó'kaa'e Ohvó'komaestse), Lean Bear, Little Wolf, and Tall Bear; the Arapaho chiefs included Little Raven, Storm, Shave-Head, Big Mouth, and Niwot, or Left Hand.

The new reserve, less than one-thirteenth the size of the 1851 reserve, was located in eastern Colorado between the Arkansas River and Sand Creek. Some bands of Cheyenne, including the Dog Soldiers, a militaristic band of Cheyenne and Lakota that had evolved beginning in the 1830s, were angry at the chiefs who had signed the treaty. They disavowed the treaty and refused to abide by its constraints. They continued to live and hunt in the bison-rich lands of eastern Colorado and western Kansas, becoming increasingly belligerent over the tide of white migration across their lands. Tensions were high particularly in the Smoky Hill River country of Kansas, along which whites had opened a new trail to the gold fields. Cheyenne who opposed the treaty said that it had been signed by a small minority of the chiefs without the consent or approval of the rest of the tribe; that the signatories had not understood what they signed; and that they had been bribed to sign by a large distribution of gifts. The whites, however, claimed that the treaty was a "solemn obligation". Officials took the position that Indians who refused to abide by it were hostile and planning a war.

The beginning of the American Civil War in 1861 led to the organization of military forces in Colorado Territory. In March 1862, the Coloradans defeated the Texas Confederate Army in the Battle of Glorieta Pass in New Mexico. Following the battle, the First Regiment of Colorado Volunteers returned to Colorado Territory and were mounted as a home guard under the command of Colonel John Chivington. Chivington and Colorado territorial governor John Evans adopted a hard line against Indians, whom white settlers accused of stealing livestock. Without any declaration of war, in April 1864 soldiers started attacking and destroying a number of Cheyenne camps, the largest of which included about 70 lodges, about 10% of the housing capacity of the entire Cheyenne nation. On May 16, 1864, a force under Lieutenant George S. Eayre crossed into Kansas and encountered Cheyenne in their summer buffalo-hunting camp at Big Bushes near the Smoky Hill River. Cheyenne chiefs Lean Bear and Star approached the soldiers to signal their peaceful intent, but were shot down by Eayre's troops. This incident touched off a war of retaliation by the Cheyenne in Kansas.

Damn any man who sympathizes with Indians! ... I have come to kill Indians, and believe it is right and honorable to use any means under God's heaven to kill Indians. —- Col. John Milton Chivington, U.S. Army

As conflict between Indians and white settlers and soldiers in Colorado continued, many of the Cheyenne and Arapaho, including bands under Cheyenne chiefs Black Kettle and White Antelope, were resigned to negotiate peace. The chiefs had sought to maintain peace in spite of pressures from whites. They were told to camp near Fort Lyon on the eastern plains, and that their people would be regarded as friendly.