This North Dakota park gives you a Mandan earth lodge and Custer’s front porch at once

Two rivers and two histories collide

Seven miles south of Mandan, North Dakota, two rivers flow together, and two very different chapters of American history sit right on top of each other.

Fort Abraham Lincoln State Park covers the ground where the Mandan people lived for over 200 years and where frontier soldiers rode out on expeditions that changed the West.

Theodore Roosevelt signed the deed that turned this land into North Dakota’s first state park back in 1907. You’re only a 20-minute drive from Bismarck, but the centuries peel back fast once you arrive.

A Mandan village thrived here for two centuries

The Mandan tribe built On-a-Slant Village near the meeting point of the Missouri and Heart Rivers around 1575.

At its height, roughly 1,000 to 1,500 people called it home, living in about 85 earthlodges along the sloping plain above the water. Then a smallpox epidemic tore through in 1781 and gutted the population.

Survivors packed up and moved north to join the Hidatsa along the Knife River.

When Lewis and Clark passed through in October 1804, they found only fallen heaps of earth where homes once stood.

The U.S. military arrived in 1872 and built Fort McKeen on the same ground, renaming it Fort Abraham Lincoln that November.

Lt. Col. George Armstrong Custer took command of the 7th Cavalry here in 1873 and held it until the Battle of the Little Bighorn in 1876.

Walk through six rebuilt earthlodges at On-a-Slant

Six reconstructed earthlodges now stand at On-a-Slant Village, including a large Council Lodge at the center. The village marked its 450th anniversary in 2025 with cultural demonstrations and hands-on activities.

During summer, park interpreters lead daily guided tours that walk you through Mandan life and traditions. If you’d rather go at your own pace, you can explore the village anytime the park gates are open.

The Mandan people still hold this ground sacred today, and you can feel the weight of that when you step inside.

Step inside a lodge built by Mandan women

Mandan women built and owned the earthlodges. They raised cottonwood log frames, then layered willow branches, grass, and packed earth over the top.

Those thick walls kept the inside cool during summer and warm through North Dakota winters. A hole in the roof served double duty, letting smoke from the fire pit rise out and sunlight pour in.

Each lodge held about 10 to 15 family members.

The Mandan were skilled farmers and traders, and they gained a reputation for their pottery and painted bison hide robes.

Costumed guides bring 1875 back to life at the Custer House

The reconstructed Victorian-style home of George and Libbie Custer sits in the middle of the cavalry post, and you can walk through it on a living history tour.

Costumed interpreters dressed as soldiers or laundresses from 1875 lead you room by room, pointing out articles that belonged to the Custers along with period-accurate furniture and dishware.

The whole tour takes about 30 to 45 minutes and drops you right into daily life on a frontier military post. Pick up your tour pass at the Visitor Center or the Commissary before you head over.

The cavalry post once housed 650 soldiers on the Northern Plains

Beyond the Custer House, seven other major fort buildings spread across the grounds. You can walk through the Commissary Great Room, barracks, granary, and stables on your own.

At its peak, Fort Abraham Lincoln held about 650 men, making it one of the largest forts on the Northern Plains.

The barracks are set up to show what a soldier’s daily life looked like in the 1870s, down to the bunks and gear. It was from this very post that Custer and the 7th Cavalry rode out on their final expedition in 1876.

Climb a bluff-top blockhouse for a three-city view

The reconstructed blockhouses sit on a bluff high above the Missouri River, and you can go inside and climb to the top.

From the upper deck, you look out across the Missouri River Valley, the open prairie, and the city of Bismarck in the distance.

The military originally built these blockhouses as observation points and defensive positions.

The Civilian Conservation Corps rebuilt them in the 1930s and placed cornerstones marking where the original fort buildings once stood. The view alone is worth the climb.

Nearly 20 miles of trails cross the park

A network of trails winds through the park, open to hikers, mountain bikers, and horseback riders.

The Fort Lincoln Loop Trail runs 3.7 miles on an easy route past the Mandan village and military buildings, with Missouri River Valley views the whole way.

The Young Hawk Interpretive Trail has numbered posts that explain the history, plants, and wildlife along the path.

Then there’s the Scattered Corn Trail, named for the first female Corn Priest of the Mandan Tribe, who helped design and rebuild earthlodges in 1934 when she was just 18 years old.

Most trail surfaces are grass, dirt, or hard-packed single track with gentle grades.

Two rivers meet below the bluffs

The park sits right where the Missouri and Heart Rivers come together, and the bluff-top trails give you some of the best views in central North Dakota.

The Mato-Tope Trail loops through the campground along both rivers and follows the old Northern Pacific Railroad line.

The Missouri is America’s longest river, and you watch it roll wide and slow through the plains from up on the ridge. Down at the shoreline, you can fish for walleye, trout, and other species without leaving the park.

The Visitor Center holds the best Mandan artifacts in the country

The Visitor Center and Museum stay open year-round, so you can start here no matter when you come. Inside, you’ll find what’s considered the best collection of Mandan artifacts and history in the nation.

Other exhibits cover Lewis and Clark, the Far West riverboat, Fort McKeen, the cavalry post, and the Civilian Conservation Corps.

A footbridge near the entrance leads directly to On-a-Slant Village, putting you steps away from the earthlodges.

Outside, the CCC Worker Statue honors the young men who built much of the park during the Great Depression.

Grab an espresso in the rebuilt Commissary

The rebuilt Commissary sits in Cavalry Square and draws visitors in with more than just history. A historical bookstore inside carries a deep selection of books on frontier history.

If you need a pick-me-up, a full espresso bar serves handcrafted drinks made with fair-trade coffee roasted right in North Dakota. Food and snacks are on hand, too.

The Commissary Great Room looks out over the Missouri River and seats up to 150 people, so it’s a good spot to sit, rest your legs, and plan your next stop.

Snowshoe the trails or chase a leprechaun in March

The park stays open daily year-round, 7 a.m. to 10 p.m. Summer brings the full lineup of living history tours, guided hikes, and outdoor performances. But winter has its own draw.

You can snowshoe the trails or join special guided hikes like the annual Leprechaun Leap in March. If you ride horses, you’re in luck.

The park is one of North Dakota’s designated horse parks, with corrals and trails built for equestrian riders. Entry runs $7 per vehicle, and annual passes are available.

Explore Fort Abraham Lincoln State Park in North Dakota

You’ll find Fort Abraham Lincoln State Park at 4480 Fort Lincoln Road in Mandan, N.D. The park sits about 20 minutes south of Bismarck and is easy to reach from Interstate 94.

Bismarck Airport is only about 15 minutes away, making it one of the more accessible state parks in the northern Great Plains. A paved bike trail connects the park to the city of Mandan if you want to ride in.

Check the official website for current tour schedules and seasonal events before you go.

This article was created with AI assistance and human editing.

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