Little Missouri
United States, North Dakota
Little Missouri
About Little Missouri
Little Missouri National Grassland encompasses over one million acres of mixed-grass prairie and dramatic badlands in western North Dakota, making it the largest national grassland in the United States Forest Service system. The grassland completely surrounds the three units of Theodore Roosevelt National Park, creating a vast protected landscape that preserves the rugged badlands terrain that transformed Theodore Roosevelt from an eastern dude into a conservationist president. Administered as part of the Dakota Prairie Grasslands by the U.S. Forest Service, the area combines working cattle ranches operating under grazing permits with extensive public recreation opportunities. The Little Missouri River winds through the heart of this landscape, carving the colorful badlands formations that characterize this unique American ecosystem.
Wildlife Ecosystems
The Little Missouri National Grassland supports diverse wildlife populations adapted to the challenging conditions of the northern Great Plains and badlands environment. Bison once roamed these prairies by the millions, and while wild herds no longer exist here, managed populations survive in Theodore Roosevelt National Park within the grassland's boundaries. Mule deer, white-tailed deer, pronghorn antelope, and elk inhabit the broken terrain, while predators including coyotes, mountain lions, and bobcats maintain the ecological balance. Prairie dog towns dot the landscape, providing habitat for black-footed ferrets, burrowing owls, and numerous other species dependent on these ecosystem engineers. Bird diversity is remarkable, including golden eagles, ferruginous hawks, prairie falcons, and upland game birds such as sharp-tailed grouse and wild turkeys.
Flora Ecosystems
The vegetation of Little Missouri National Grassland reflects the mixed-grass prairie ecosystem of the northern Great Plains, where shorter western grasses meet taller eastern species. Blue grama, western wheatgrass, and needle-and-thread grass dominate drier upland sites, while taller species including big bluestem and switchgrass occur in mesic draws and lowlands. Sagebrush communities occupy alkaline flats, and stands of Rocky Mountain juniper and scattered ponderosa pine grow on north-facing slopes and in sheltered draws. The badlands terrain supports sparse vegetation adapted to unstable, erosive soils, while riparian corridors along the Little Missouri River feature cottonwood galleries and dense shrub communities. Wildflowers including coneflowers, blazing stars, and prairie roses add color during the growing season.
Geology
The Little Missouri National Grassland showcases some of the most dramatic badlands topography in North America, created through ongoing erosion of sedimentary rocks deposited 55 to 65 million years ago. The colorful layers visible in the badlands include the Sentinel Butte Formation, consisting of interbedded sandstones, mudstones, and lignite coal seams that sometimes burn underground, creating the distinctive red scoria deposits. The Little Missouri River has carved deeply into the soft sediments, creating a maze of buttes, coulees, and ravines with hundreds of feet of local relief. White Butte, North Dakota's highest point at 3,506 feet, rises in the southeastern portion of the grassland near Amidon. The landscape continues to erode rapidly by geological standards, with rainfall and snowmelt carving new features while old formations crumble away.
Climate And Weather
Little Missouri National Grassland experiences a semi-arid continental climate with extreme temperature variations between seasons and even within single days. Summers bring hot days frequently exceeding 90 degrees Fahrenheit, while winters see temperatures plunging to minus 30 degrees or colder during Arctic outbreaks. Annual precipitation averages only 14 to 16 inches, with most falling during late spring and early summer thunderstorms that can produce violent weather including tornadoes and flash floods. Winter brings persistent cold with moderate snowfall that can be redistributed by strong winds into deep drifts. The exposed badlands terrain offers little shelter from summer sun or winter wind, requiring visitors to prepare for challenging conditions in any season.
Human History
The Little Missouri badlands have attracted human inhabitants for at least 10,000 years, with numerous archaeological sites documenting indigenous use for hunting, plant gathering, and spiritual purposes. Plains tribes including the Mandan, Hidatsa, and various Sioux nations utilized the region seasonally, hunting bison and other game in the broken terrain. Theodore Roosevelt arrived as a young New York politician in 1883 to hunt bison and soon invested in cattle ranching, operating the Maltese Cross and Elkhorn ranches in what would become the national grassland. The cattle industry transformed the region following the extermination of bison, and ranching continues today under Forest Service grazing permits. Oil development beginning in the 1950s added energy production to the landscape, with wells visible throughout portions of the grassland.
Park History
Little Missouri National Grassland originated from federal lands managed under various agencies following the homestead era, when many settlers found the harsh climate unsuitable for farming and abandoned their claims. The government acquired these lands during the Dust Bowl years of the 1930s, consolidating them into management units under the Soil Conservation Service. Administration transferred to the Forest Service in the 1950s, with the area designated as a national grassland and eventually incorporated into the Dakota Prairie Grasslands administrative unit. Theodore Roosevelt National Park was carved out of the grassland in 1978, though it remains completely surrounded by the national grassland. The grassland continues to balance multiple uses including livestock grazing, oil and gas development, recreation, and wildlife habitat while preserving the character of the northern Great Plains.
Major Trails And Attractions
The Little Missouri National Grassland offers vast open spaces for dispersed recreation including hiking, horseback riding, hunting, and wildlife viewing across more than one million acres. The Maah Daah Hey Trail, a premier long-distance route extending approximately 144 miles, traverses the grassland and Theodore Roosevelt National Park, offering multi-day backpacking and mountain biking opportunities. Scenic driving routes cross the grassland, providing access to overlooks where visitors can appreciate the vast scale and dramatic colors of the badlands landscape. Hunting opportunities draw visitors seeking mule deer, pronghorn, upland birds, and other game species during established seasons. The grassland's remoteness offers a wilderness-like experience increasingly rare in the lower 48 states, with dark night skies and the sounds of coyotes and meadowlarks replacing the noises of civilization.
Visitor Facilities And Travel
Little Missouri National Grassland provides minimal developed facilities, offering instead a primitive recreational experience across its vast extent. The Forest Service maintains several small campgrounds, but much of the grassland is open for dispersed camping, allowing visitors to camp virtually anywhere on public land. Access is via a network of gravel and dirt roads of varying quality, with U.S. Highway 85 serving as the primary paved route through the area between Watford City and Bowman. The grassland surrounds Theodore Roosevelt National Park, which offers more developed facilities including visitor centers at the South Unit near Medora and North Unit near Watford City. Visitors should arrive self-sufficient with adequate fuel, water, and supplies, as services are limited and cell phone coverage is unreliable across much of the area.
Conservation And Sustainability
Conservation on Little Missouri National Grassland involves managing the complex interplay of livestock grazing, energy development, recreation, and wildlife habitat on public lands. The Forest Service implements grazing management plans designed to maintain grassland health while supporting the ranching economy that has operated here for over a century. Oil and gas development, which has expanded dramatically during recent decades, requires mitigation measures to minimize impacts on wildlife and scenic values. Habitat management for sensitive species including prairie dogs, which support numerous dependent species, receives ongoing attention from wildlife managers. Climate change poses emerging challenges as increasing drought stress affects grassland vegetation and altered fire regimes require adaptive management responses to maintain ecosystem function.
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Frequently Asked Questions
Where is Little Missouri located?
Little Missouri is located in North Dakota, United States at coordinates 47.0989, -103.5386.
How do I get to Little Missouri?
To get to Little Missouri, the nearest city is Dickinson (27 mi), and the nearest major city is Bismarck (97 mi).
How large is Little Missouri?
Little Missouri covers approximately 4,181.06 square kilometers (1,614 square miles).
When was Little Missouri established?
Little Missouri was established in 1960.


