The Black Kettle National Grassland contains 31,300 acres with 30,724 acres located near Cheyenne, Oklahoma, and the remaining 576 acres located near Canadian, Texas and comprising the Lake Marvin Recreation Area.
Location
The visitor center is located just west of Cheyenee on OK 47; follow the Alt OK 47 (47a) signs to the office.
OpenStreetMap Google Maps
35.614647, -99.686852
35.614647, -99.686852
Photos

Notes
Black Kettle WMA covers 30,710 acres near the town of Cheyenne in Roger Mills County. Located in the mixed grass prairie, it is a mixture of rolling sand hills, red shale hills, and wooded bottoms.
Links
Links