https://www.google.com/maps/d/viewer?mid=1uAniDybdvBLBaVv3AvWUtzOPN6teBFo&ll=30.078857508760073%2C-94.12648345&z=18Water delineates many of its borders. The wriggling program of the Red River tends to make up the eastern two-thirds of Texas’s boundary with Oklahoma towards the north, while the rest