Dickinson to Keystone: Badlands & Black Hills Road Trip

Spanning roughly 320 miles and 5.5 hours of pure driving time, the route from Dickinson, ND to Keystone, SD crosses two time zones and three distinct geological provinces. You begin in the Missouri Plateau of the Great Plains, descend into the badlands of the Little Missouri River, then climb onto the High Plains before dropping into the Black Hills.

This drive is far more than a straight shot; it's a journey through fossil history and Western lore, where Theodore Roosevelt once ranched and Crazy Horse’s mountain carving stands unfinished. The most direct path uses I-94 east to Belfield, then US-85 south through the North Dakota Badlands, continuing through South Dakota's Spearfish Canyon to Keystone.

Travelers often ask is it worth driving Dickinson, ND to Keystone, SD—the answer is a resounding yes, as the route passes two national parks and several iconic monuments.

Safety on this route is straightforward: watch for wildlife at dawn and dusk, especially deer and bison, and beware of tricky winds on the open plains that can affect high-profile vehicles. Road surface conditions are generally good, with occasional potholes after winter.

Fatigue management is key for the long stretch between Bowman and Belle Fourche. Plan a break at the Bowman rest area, and short on the road, the town of Buffalo, SD, has a park with picnic tables—ideal for a quick nap or snack.

For families, the route is a hit: kids love the Prairie Dog Town in Medora and the Bear Country USA drive-through near Rapid City. The black hills also feature numerous dinosaur parks and the Cosmos Mystery Area, but keep the itinerary flexible.

Pet-friendly infrastructure is solid: both Theodore Roosevelt and Badlands National Parks allow leashed pets on trails. Many motels in Medora and Keystone welcome pets, though the historic lodges may have restrictions. Always carry water and a bowl, as the dry climate can be tough on pets.

Hidden off-route spots include the town of Marmarth, ND, an almost-ghost town with a restored railroad depot, and the Spearfish Canyon Scenic Byway, a detour worth 20 minutes for its waterfalls. For a quieter experience, drive the Crow Peak Trail near Spearfish.

Rest zones exist at the North Dakota welcome center near Belfield and the South Dakota rest area south of Buffalo. Combining stops with fuel breaks ensures you stay fresh and enjoy every mile.

Your initial 45 miles on I-94 east are among the least scenic, but the moment you turn south onto US-85 at Belfield, the land tilts into technicolor buttes. This is a two-lane highway with occasional passing opportunities; it's well-maintained year-round but subject to wind-blown snow in winter.

Fuel is readily available in Dickinson, Belfield, Medora, Bowman, and Belle Fourche, but between Bowman and Belle Fourche (about 100 miles) expect sparse services. Gas prices in North Dakota tend to be slightly lower than in resort towns like Keystone; fill up in Belle Fourche for the best value.

• Best stops between Dickinson, ND and Keystone, SD include Theodore Roosevelt National Park and Spearfish Canyon, both visible from the road.
• The drive offers a natural progression from grasslands to forest, with a 3,000-foot elevation gain near Deadwood.
• Cell coverage is intermittent in the badlands; download offline maps before Bowman.

For a detailed approach to planning such a trip, see how to find the best stops and hidden gems between cities.

Road quality is excellent; both US-85 and US-16 (the final approach to Keystone) are paved and have clear signage. Winter travel requires checking conditions at the North Dakota DOT and South Dakota DOT websites.

Theodore Roosevelt National Park, just minutes from Medora, is the route's crown jewel. A 36-mile scenic loop through the South Unit reveals wild horses, bison, and prairie dogs—a living tableau of the American West. The Painted Canyon Overlook, visible from I-94, offers a stunning preview of the badlands' striped geology.

Continuing south, you skirt the Buffalo Gap National Grassland, a sea of shortgrass prairie that seems endless. Near Hot Springs, SD, the landscape transforms into the southern Black Hills, with limestone canyons and pine-capped ridges.

UNESCO designated Waterton-Glacier International Peace Park is far north, but this route includes no UNESCO World Heritage Sites; the closest cultural analog is Mount Rushmore, a National Memorial, not a UNESCO site.

Culinary infrastructure is a mix of classic small-town diners and ranch-style cafés. Medora boasts the famous Pitchfork Fondue, a chuckwagon dinner where steaks are cooked on pitchforks. In Belle Fourche, the “Pizza Corral” is a local favorite for thin-crust pies. Keystone offers typical tourist fare, but head to the Prospect Grill for a craft burger.

Local commerce beyond food includes the Black Hills Gold jewelry shops in Deadwood and the hand-carved wooden signs in Keystone. In Medora, the North Dakota Cowboy Hall of Fame celebrates ranching heritage.