Treaty of October 28, 1867
The Treaty of October 28, 1867, established peace between the United States and the Cheyenne and Arapahoe tribes, affirming mutual commitments to cease hostilities. It defined a designated reservation for the tribes, mandated educational provisions, and outlined the establishment of agricultural support. The treaty emphasized the tribes’ right to hunt on certain lands and prohibited unauthorized settlements. It established an annual distribution of goods and services, while ensuring that no land cessions would occur without the consent of three-fourths of the adult male tribe members.