The boundaries set by the treaty in 1765 were described as starting at Grosse Pointe on Mon Louis Island, then up the western coast of Mobile Bay, then up the Mobile River (Then considered part of the "Tombecbee") to the confluence of Alibamont (Alabama) and Tombecbee (Tombigbee) rivers, and afterwards along the western bank of the Alibamont River to the Chickianoce River (probably Reedy Creek near Choctaw Bluff in modern Clarke County, Alabama), and from the confluence of the Chickianoce and Alibamont rivers followed a straight line westward to the confluence of the Bance (Jackson Creek in Clarke County) and Alibamont rivers; from there it followed the western bank of the Bance River until its confluence with the Talltukpe River (Tattilaba Creek); from there it followed a straight line to the Tombecbee River opposite Atchalikpe (Hatchatigbee Bluff); and from Atchalikpe it followed a straight line to the source of the Buckatanne River (Buckatunna Creek in Wayne County, Mississippi) down the Buckatanne River to its confluence with the Pascagoula River, and down the Pascagoula River to a point 36 miles from the Gulf of Mexico (thought at the time to correspond with the 31st parallel north); and then by a due west line, as far as the Choctaw Nation have a right to grant.