Lake Texoma
 Lake Texoma is one of the largest reservoirs in the United States the 12th largest Corps of Engineers' (USACE) lake and the largest in USACE Tulsa District.Lake Texoma is formed by Denison Dam on the Red River in Bryan County Oklahoma and Grayson County Texas about 726 miles (1168 km) upstream from the mouth of the river. It is located at the confluence of the Red River and Washita Rivers.