Road Trip PlannerPlanner
Hidden Gem

Fort Abraham Lincoln State Park

4545 Fort Lincoln Rd, Mandan, ND

Mandan, ND

A reconstructed Mandan earthlodge village beside the fort Custer rode out from, two very different chapters of Missouri River history on one bluff.

Fort Abraham Lincoln State Park holds two very different chapters of Missouri River history on a single stretch of wooded bluff. Here stands the reconstructed On-A-Slant Village, a Mandan earthlodge town that visitors can walk into, and nearby rise the rebuilt buildings of a frontier cavalry fort, including the house of George Armstrong Custer, from which the 7th Cavalry rode toward the Little Bighorn in 1876.

The pairing makes the park one of the most compelling historic sites in North Dakota. The Mandan village recalls the farming, trading people who lived along the Missouri for centuries, while the fort tells the story of the U.S. Army on the northern plains during the Indian Wars. Set among river bluffs with trails and views, the park lets visitors move between these worlds in an afternoon.

What Guests Love

  • Walking inside reconstructed Mandan earthlodges at the On-A-Slant Village
  • The rebuilt cavalry fort, including the Custer house, where the 7th Cavalry was based
  • The layered story of Mandan life and the fort Custer rode from toward the Little Bighorn
  • Wooded bluffs, river views, and trails above the Missouri

Worth Knowing

  • The park layers two very different histories, the Mandan village and the cavalry fort, so allow time for both
  • Guided tours and living-history programs run mainly in the warmer months, so check ahead
  • The reconstructed earthlodges sit on the site of a real Mandan village called On-A-Slant, treated with respect
  • The park has trails, a campground, and a seasonal scenic railway, making it an easy full-day visit

Details

Address4545 Fort Lincoln Rd, Mandan, ND
Mandan, ND
Websiteparkrec.nd.govLink opens in a new tab.

Learn about Fort Abraham Lincoln State Park

On-A-Slant Village and the Mandan

Long before the fort, this bluff held a Mandan town the people called On-A-Slant, for the way the ground sloped toward the river. The Mandan were farmers and traders who built villages of dome-shaped earthlodges along the Missouri, raising corn, beans, squash, and sunflowers and exchanging goods across a wide Native trade network. Waves of epidemic disease brought by newcomers devastated the Mandan and their neighbors, and the village was eventually left. Today the Mandan are part of the MHA Nation, the Three Affiliated Tribes, with the Hidatsa and Arikara, their homeland at Fort Berthold upstream.

The park has reconstructed several earthlodges on the site so visitors can step inside and understand how these substantial, well-built homes worked, cool in summer and warm in winter, with room for families, storage, and even horses. Interpreters help connect the reconstruction to the living Mandan people and their descendants, keeping the village's story present rather than past.

The cavalry fort and Custer

In the 1870s the U.S. Army built Fort Abraham Lincoln on the bluff and the flats below to guard the railroad's push across the plains and to project force against the tribes of the region. It became the base of the 7th Cavalry under George Armstrong Custer, and its rebuilt buildings, including the Custer house, the barracks, and other structures, let visitors picture life at a frontier post.

It was from this fort that Custer led the 7th Cavalry out in the spring of 1876 on the campaign that ended in his defeat and death at the Battle of the Little Bighorn in Montana. The fort's role in that story gives it a somber weight, and the park interprets it as part of the larger, painful history of the Indian Wars on the northern plains.

Trails, river, and the railway

Beyond its historic sites, the park is a fine outdoor destination, with trails winding through the wooded bluffs and river bottom and views over the Missouri. Deer and wild turkeys move through the trees, and the river and its cottonwoods draw birds and other wildlife, making the walks rewarding on their own.

A seasonal scenic railway carries visitors on a short ride through part of the park, adding to the sense of stepping back in time. With a campground, picnic areas, and its layered history, the park easily fills a full day and makes a strong base for exploring the capital region.

Season by season

Summer is the fullest season, when the earthlodges, the fort buildings, guided tours, living-history programs, and the scenic railway are all in swing, and the wooded park is green and inviting. Long warm days make it easy to see everything.

Fall brings golden cottonwoods, cooler air, and thinner crowds, a fine time for the trails and river views. Winter is cold and quiet, with many programs paused, and spring reopens the season as the bluffs green up. Checking the schedule for tours and the railway helps plan the fullest visit.

Closest Boutels

The closest Boutel™ stays, so you can turn this stop into an overnight. Each is an independently owned, editorially selected place to stay.

Badlands Motel

Honorable Mention

501 Pacific Ave, Medora, ND

(701) 623-4444

127 miles away|Learn More ›

Bavarian Inn Black Hills

Boutel+

855 N Fifth St, Custer, SD

(605) 673-2802

246 miles away|Learn More ›

Rocket Motel

Boutel

211 Mount Rushmore Rd, Custer, SD

(605) 673-4401

246 miles away|Learn More ›

Things to Do Near Mandan

Mandan and Bismarck

About 7 miles north

The capital city area, with the North Dakota Heritage Center, restaurants, and services along the Missouri.

North Dakota Heritage Center and State Museum

About 10 miles northeast

The state's flagship museum in Bismarck, with deep galleries on the Mandan, Hidatsa, and Arikara.

Double Ditch Indian Village State Historic Site

About 20 miles north

The earthwork remains of a large Mandan village on a bluff above the Missouri north of Bismarck.

Missouri River waterfront

Alongside the park

Riverside bluffs and bottomland along the Missouri, with trails and views in the capital region.