Nixgu
Ñíxgu is an Ioway and Otoe name for the Cimarron River, a watercourse of the southern Plains. Rising in the dry country to the west, the river winds eastward across the plains to join the Arkansas. Its name is associated with the salty water carried from its upper basin. Broad sandy stretches and variable flows mark a river that connects the high plains with the greener country farther east.