The "old Choctaw Boundary Line," as marked upon the U. S. Land Office map of 1878, runs from Prentiss, a point on the Mississippi river in Bolivar county (33° 37 � Lat.), Miss., in a southeastern direction to a point on Yazoo river, in Holmes county. The "Chicasaw Boundary Line" runs from the Tunica Old Fields, in Tunica county, opposite Helena, on Mississippi river (34° 33 � Lat.), southeast through Coffeeville in Yallabusha county, to a point in Sumner county, eastern part. The "Choctaw Boundary Line" passes from east to west, following approximately the 31° 50 � of Lat., from the Eastern boundary of Mississippi State to the southwest corner of Copiah county. All these boundary lines were run after the conclusion of the treaty at Doak's Stand.