The North Canadian River rises in New Mexico and is known as the Corrumpa River, entering the Panhandle region flowing east before dipping into Texas for six miles. It reenters Oklahoma near Texhoma flowing in a northeastly direction passing to the north of Guymon emptying into Optima Lake. It emerges from the lake as the Beaver River and flows in a southeastly direction and, after passing Fort Supply Lake, takes its final name.
