This primary source comes from the Records of the Office of the Chief of Engineers.
Full Citation: Cherokee Indian Nation, copy of terms of patent granting lands situated in Indian Territory to, in accordance with treaties of May 6, 1828, Feb. 14, 1833, and Dec. 29, 1835, describing lands and reserving military reservation at Fort Gibson - Oklahom; ca. 1835; Indian Reservations; Civil Works Map File, 1818 - 1947; Records of the Office of the Chief of Engineers, Record Group 77; National Archives at College Park, College Park, MD. [Online Version, https://www.docsteach.org/documents/document/cherokee-indian-nation-terms-of-patent-granting-lands, May 12, 2024]