Hoxie, Frederick E.: Parading Through History. The Making of the Crow Nation in America, 1805-1935. Cambridge, 1995. See map p. 63. Kappler, Charles, J.: Indian Affairs. Laws and Treaties. Washington, 1904, Vol. 2. pp. 1008-1011 (treaty with the Crows 1868). American Memory. Indian Land Cessions in the United States, 1784 to 1894. Map: Montana 1. http://memory.loc.gov/cgi-bin/map[permanent dead link]
