The area of Oglala National Grassland is 382.509 square kilometers.
The area of Comanche National Grassland is 1,793.085 square kilometers.
The Cedar River National Grassland covers an area of approximately 6,400 acres.
The area of Buffalo Gap National Grassland is 2,417.717 square kilometers.
The area of Black Kettle National Grassland - Oklahoma - is 126.667 square kilometers.
Most native grasslands are located on Federal lands, National Parks, and some private-owned ranches in both countries: Canada: Grassland National Park of Saskatchewan Cypress Hills Provincial Park of Saskatchewan and Alberta Wood buffalo National Park in northern Alberta and Northwest Territories The Whale-Back in southern Alberta Head-Smashed-In-Buffalo-Jump National Park in southern Alberta Kinsella Ranch Research Station of the University of Alberta near Viking, Alberta Jasper, Banff, Waterton Lakes National Parks Elk Island National Park Riding National Park of Manitoba Prince Alberta National Park of Saskatchewan Other Crown Lands and Ducks Unlimited protected privately owned lands USA: Yellowstone National Park of Wyoming, Montana and Idaho, USA National Grasslands Visitor Center in Nebraska and South Dakota Buffalo Gap National Grassland of Nebraska and South Dakota Fort Pierre National Grassland of Nebraska and South Dakota Oglala National Grassland of Nebraska Butte Valley National Grassland of California Cimarron National Grassland of Colorado Comanche National Grassland of Colorado Crooked River National Grassland of Oregon Curlew National Grassland of Idaho Dakota Prairie Grasslands of North Dakota Midewin Tall-grass Prairie of Illinois Kiowa National Grassland of New Mexico Rita Blanca National Grassland of New Mexico, Oklahoma and Texas Lyndon B. Johnson/Caddo National Grassland of Texas McClellan Creek/Black Kettle National Grassland of Oklahoma and Texas Pawnee National Grassland of Colorado Thunder Basin National Grassland of Wyoming Other private ranches in these states listed
The area of Comanche National Grassland is 1,793.085 square kilometers.
The area of Pawnee National Grassland is 781.286 square kilometers.
The area of Caddo National Grassland is 72.329 square kilometers.
The area of Kiowa National Grassland is 552.06 square kilometers.
The area of Sheyenne National Grassland is 284.008 square kilometers.
The Cedar River National Grassland covers an area of approximately 6,400 acres.
The area of Crooked River National Grassland is 454.693 square kilometers.
The area of Butte Valley National Grassland is 74.563 square kilometers.
The area of Rita Blanca National Grassland is 376.313 square kilometers.
The area of Thunder Basin National Grassland is 2,216.14 square kilometers.
The area of Grand River National Grassland is 626.385 square kilometers.
The area of McClellan Creek National Grassland is 5,863,894.956057601 square meters.