Treaty between the United States of America and the Crow Tribe of Indians Concluded May 7, 1868 Ratification Advised July 25, 1868 Proclaimed August 12, 1868, 1868-05-07. Native American Treaties Collection, MSS-039. Manuscripts. https://aspace.ll.georgetown.edu/public/repositories/3/archival_objects/2763 Accessed June 28, 2025.