Black Kettle

The Black Kettle National Grassland, in Roger Mills County, Oklahoma, and Hemphill County, Texas, contains 31,286 acres of which 30,710 acres are in Oklahoma.Named for the Indian leader Black Kettle, the grassland is managed by the Cibola National Forest, which also manages the Rita Blanca National Grassland in Dallam County, Texas and Cimarron County, Oklahoma, and McClellan Creek National Grassland in Gray County, Texas.

Source: Wikipedia