The park
Theodore Roosevelt National Park covers approximately 285 square kilometres in western North Dakota, in the badlands cut by the Little Missouri River. The park is divided into three units: the South Unit near Medora, the North Unit near Watford City, and the Elkhorn Ranch Unit (the site of Theodore Roosevelt's historic ranch operation, smaller and more remote). The South and North Units are the visitor-accessible portions and hold the park's two bison sub-herds.
The terrain is the classic North Dakota badlands: deeply eroded soft sediment cut by the Little Missouri and its tributaries into ridges, buttes, and multicoloured exposure layers. The vegetation is a mix of mixed-grass prairie on the uplands, sagebrush in the dryer flats, and ponderosa pine and juniper on the cooler slopes. The wildlife community includes bison, feral horses (the South Unit's "wild" horse herd), bighorn sheep, elk, mule deer, pronghorn, coyote, and the prairie dog towns that host the park's substantial burrowing owl population.
The 1956 reintroduction
Bison were absent from the North Dakota badlands for approximately fifty years following the 1880s commercial-hunt collapse. The reintroduction came in 1956 when twenty-nine plains bison were transferred from Fort Niobrara National Wildlife Refuge in northern Nebraska to the South Unit of what was then Theodore Roosevelt National Memorial Park (later upgraded to National Park status in 1978). The Fort Niobrara source herd was itself founded in 1913 by transfers from the Bronx Zoo and other early 20th century conservation sources.
The South Unit herd grew through the late 1950s and 1960s and reached a population that supported the establishment of a second herd in the North Unit. Twenty bison were moved from the South Unit to the North Unit in 1962, founding the modern North Unit population. The two units are separated by approximately 70 miles of open country and the two herds are managed as separate sub-populations; the badlands terrain and the distance between the units make natural mixing functionally impossible.
The combined herd has grown to approximately 500 animals, with the South Unit holding the larger share. Annual management harvests through round-ups and transfers maintain the populations within the park's stated carrying capacity. The herd is brucellosis-free and is one of the cleaner sources for transfers to other conservation programmes, although the genetic introgression status places the herd in the second-tier rather than the strict-source category. The specific introgression profile of the North Dakota animals reflects the Fort Niobrara founder line.
Theodore Roosevelt's connection to the badlands
Theodore Roosevelt first travelled to the North Dakota badlands in September 1883 specifically to hunt bison. He was twenty-four years old, a New York state assemblyman with national political ambitions, and a serious sportsman. Roosevelt's account of the trip records the difficulty of finding bison at all: the once-vast Plains herds were down to small remnants, and a hunt that would have been straightforward in 1860 took Roosevelt a week of riding through the badlands before he located a single bull and shot it. The experience of seeing the species' collapse at close range was formative.
Roosevelt returned to the area repeatedly and bought a partnership in a working cattle ranch, the Maltese Cross, in 1883 and then established his own ranch, the Elkhorn Ranch, in 1884. He continued ranching in the badlands for several years. The hard winter of 1886-1887 devastated his cattle herd, as it did most cattle operations in the northern Plains, and Roosevelt eventually withdrew from ranching. But his time in the badlands and the experiences of the bison's near-extinction, the harsh climate, and the working life of frontier ranchers were a substantial part of the experience he later credited for shaping his character and his conservation thinking.
As President from 1901 to 1909, Roosevelt established the United States Forest Service, designated 150 million acres of national forest, set up five national parks, eighteen national monuments, and fifty-one federal bird reserves. The American Bison Society, of which Roosevelt was an early member and supporter, was founded in 1905. The Wichita Mountains Wildlife Refuge bison herd, the National Bison Range, and several other early conservation bison populations were established during Roosevelt's presidency or with his direct support. The park named for him in the North Dakota badlands is one of the most direct commemorations of his conservation legacy.
The South Unit
The South Unit, near the town of Medora, is the more visited of the park's two main units. The 36-mile Scenic Loop Drive crosses the South Unit's badlands and grasslands and reliably produces bison sightings throughout the year. The herd's grazing range covers much of the unit and visitors driving the loop will usually encounter at least small groups of bison, often on or near the road. The South Unit also holds the park's "wild" horse herd, descended from local ranch and Indigenous horses that were absorbed into the park population when it was established.
Medora itself is a small town with a strong historic-tourism economy oriented around the park and the Roosevelt connection. The Medora Musical, the Theodore Roosevelt Medora Foundation's interpretive programming, and the seasonal hospitality infrastructure make Medora the natural base for South Unit visitors. The town is a few miles west of the park entrance and is the jumping-off point for most South Unit trips.
The North Unit
The North Unit, near Watford City, is the quieter half of the park. The 14-mile Scenic Drive (a one-way out-and-back) crosses the unit's badlands and provides reliable bison sightings, although the smaller herd (100 to 200 animals) and the larger unit area make encounters somewhat less guaranteed than in the South Unit. The terrain in the North Unit is more dramatically eroded than the South Unit, with deeper canyons and more striking exposure layers, and the unit is often described as more visually spectacular and substantially less crowded.
Watford City is in the heart of the North Dakota Bakken oil region, which has shaped the local economy substantially over the past two decades. Visitor facilities in Watford City and along the highway to the park are adequate but modest compared to Medora.
Visitor experience
Theodore Roosevelt NP is one of the more underrated bison-viewing destinations in the United States. The combination of a substantial herd, accessible loop drives in both units, dramatic badlands scenery, and relatively low visitor density (approximately 600,000-700,000 annual visitors compared to Yellowstone's 4 million-plus) makes for a more relaxed and intimate wildlife experience than the larger destinations. The park is well worth a dedicated visit and is logically combined with a broader Great Plains itinerary including the Black Hills (Custer State Park and Wind Cave), Mount Rushmore, and the various Lakota Tribal lands of the western Dakotas.
Best viewing is early morning and late afternoon throughout the year. Spring and early summer produce the red dog calves; late summer is the rut; autumn brings the badlands' vivid colour and the quieter visitor period; winter is the most atmospheric season with snow on the badlands ridges and the bison clustered in lower-elevation valleys. The park's smaller scale compared to Yellowstone makes it feasible to visit both units in a two-to-three day trip, with one full day per unit.
The herd as a restoration source
Theodore Roosevelt NP's bison herd contributes to the broader conservation transfer network. Surplus animals from the periodic round-ups are routed to a mix of destinations including Tribal conservation herds, other federal and state conservation units, and occasional commercial transfers. The herd is smaller than the major source herds (Yellowstone, Custer, Wind Cave) and the volume contribution is correspondingly smaller, but the herd's brucellosis-free status and the established round-up infrastructure make the contribution reliable.
The herd's genetic profile reflects its Fort Niobrara source. The Fort Niobrara line is one of the moderately diverse founder lines from the early 20th century conservation network and is well-represented in conservation herds across the central Plains. The Theodore Roosevelt animals add to the diversity of the broader transfer network without occupying the strict-source role played by Yellowstone, Wind Cave, and Antelope Island.
Frequently asked questions
Are the two units worth visiting separately?
Yes, although the South Unit alone gives a complete bison-viewing experience. The North Unit's scenery is more dramatic and the smaller crowds make for a different feel. A combined two-day visit (one day per unit) is the standard recommendation for visitors who want to experience the full park.
When is the round-up?
Theodore Roosevelt NP conducts management round-ups irregularly, typically every two to three years and depending on the population status. The events are primarily operational rather than visitor-oriented and do not have the public spectacle scale of the Custer State Park or Antelope Island round-ups. The park publishes dates when round-ups are scheduled.
Can visitors hike off-trail in the park?
Yes, in designated areas, but visitors should be cautious of bison and other wildlife and should follow the standard 25-yard minimum distance rule. The badlands terrain is steep, eroded, and slippery in places, and visitors should assess their hiking ability against the conditions before going off-trail.
Is the Elkhorn Ranch Unit worth visiting?
For Theodore Roosevelt historical enthusiasts, yes; for casual visitors, less so. The Elkhorn Ranch Unit is the historic site of Roosevelt's working ranch but is small, remote, and accessible only by a partially unpaved road. There are no facilities. The site provides historical context for Roosevelt's badlands period but does not have the wildlife or scenery focus of the two main units.