Fort Abraham Lincoln State Park

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Fort Abraham Lincoln State Park Fort Abraham Lincoln State Park is rich in both military and early Native American history. The earthlodges were constructed and owned by the women. Lt.
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History


Fort Abraham Lincoln State Park in North Dakota is one of the outstanding historic areas within the state. The park is made historically important because within its boundaries are the ruins of On-A-Slant Mandan Indian Village and the Fort Abraham Lincoln cavalry and infantry posts. The land itself was deeded to the state in 1907 by President Theodore Roosevelt. Park development started in 1934 by the Civilian Conservation Corps (CCC), who built the visitor center, earthlodges, blockhouses, shelters and roads, and placed cornerstones to mark buildings at the infantry and cavalry posts. Additional development took place in the late 1980s and 1990s, with the reconstruction of the commanding officer's house, commissary storehouse, enlisted men's barracks and granary, all on the cavalry post grounds; and the Council Lodge in the On-A-Slant Village. On-A-Slant Village On-A-Slant Indian village at Forth Abraham Lincoln State Park. The history of the Heart River Mandan teaches that not all Plains Indians lived a nomadic life. Since most people equate Indian life on the Great Plains with that of the culturally different hunting and gathering Sioux, it may surprise some to know that the Mandan lived a sedentary, agriculturally-based society. Newly studied archeological data suggests the On-A-Slant Village was established about 1575. On-A-Slant was one of the southernmost of nine villages near the mouth of the Heart River, which they believed to be the center of the universe. The village, named On-A-Slant because of its slope toward the river, contained about 75 earthlodges with a village population of around 1000. The frame was made of cottonwood logs, covered with a thick mat of willow, grass and earth. Typical earthlodges were between 20 and 40 feet in diameter and 15 to 20 feet high. In the center of the roof, a circular hole acted as a skylight and smokehole for the firepit. Unlike most Plains Indian tribes, the Mandan lived in sedentary communities and relied upon a mixture of hunting and agriculture for subsistence. The men hunted while the women tended crops, prepared animal hides and meat, gathered wild berries, wove baskets and made pottery. The Mandan were noted for their skill in processing animal skins and manufacturing pottery, and their villages became trading centers where nomadic tribes came to exchange animal skins for agricultural products. After prospering on this site for two centuries, a smallpox epidemic hit in 1781 and virtually eliminated the Heart River-region Mandan. The survivors moved north along the Missouri River, eventually joining the Hidatsa near the Knife River. When Lewis and Clark discovered the deserted On-A-Slant Village in late 1804, it was already in an advanced state of decay, for they reported that the remains included fallen heaps of earth which had covered the houses. Today, descendants of the Mandan, Hidatsa and Arikara tribes live on the Fort Berthold Reservation surrounding Lake Sakakawea. Seven of the estimated nine Mandan village sites on the Heart and Missouri rivers have been identified. Most of the village sites were destroyed or seriously disturbed due to urban and industrial development along the rivers. These villages represent the middle period of Mandan culture, during which they achieved their highest civilization. On-A-Slant has probably had less disturbance and pilferage than the others and offers future archeologists considerable opportunity to expand the knowledge of Mandan society. The Military Years Cavalry
Nearly a century later, the military established an infantry post on a bluff above the On-A-Slant ruins. In preparation for the Northern Pacific Railroad to lay its track to the Missouri River and beyond, the military was dispatched to the area. In June 1872, an infantry post, called Fort McKeen, was built by Companies B and C of the 6th Infantry. The name Fort McKeen was short-lived; the designation was changed to Fort Abraham Lincoln on November 19, 1872. In 1873 Congress authorized the addition of a cavalry post and its construction was mostly completed the same year. The Seventh United States Cavalry, which had been scattered throughout the south and west, proceeded north to Fort Abraham Lincoln. By 1874, Fort Abraham Lincoln housed three companies of the 6th and 17th Infantries and six companies of the 7th Cavalry, making the fort a nine-company command. With a total complement of about 650 men, the fort was among the largest and most important on the Northern Plains. Colonel (Brevet Major General) George Armstrong Custer was the first commander of the enlarged fort and served here from 1873 until the Battle of the Little Big Horn in 1876. Fort Abraham Lincoln was the headquarters of the 7th Cavalry until June of 1882, when the 7th Cavalry and its headquarters were transferred to Fort Meade in present-day South Dakota. Upon completion of the railroad to Montana, Fort Abraham Lincoln had fulfilled its primary purpose. Consequently, the fort gradually declined in importance and was finally abandoned in 1891. In its heyday, the fort encompassed 78 separate buildings. Many of the original buildings were dismantled by area settlers and the materials used in the construction of area homes and farms. Today, the Victorian-style home of George and Libbie Custer has been reconstructed and is open for living history tours. Also reconstructed are the commissary storehouse, which houses a gift shop, the enlisted men's barracks, granary and stable.

As the fall dragged on in 1876, the Great Sioux War did as well.In late July, Brigadier General Alfred Terry’s existent ...
10/21/2026

As the fall dragged on in 1876, the Great Sioux War did as well.

In late July, Brigadier General Alfred Terry’s existent command was in dire need of reinforcements. The army immediately directed resources to the Yellowstone country. Elements of the 22nd Infantry under Lt. Col Elwell S. Otis headed west from the Great Lakes and a contingent of the 5th US Infantry commanded by its Colonel, Nelson A. Miles, were ordered from their station at Fort Leavenworth, KS up to Montana Territory.

Colonel Miles and his contingent of the 5th Infantry, however, were directed by Terry to detach from the main body in mid-August, which he was all too happy to do. Miles, among other officers, criticized the operations of Terry as mismanaged and inefficient and took great pleasure at being sent back to the Yellowstone Depot to coordinate a blocking operation. He and his companies of the 5th Infantry spent the rest of August and early September patrolling the Yellowstone River country for signs of the Lakota and Cheyenne heading north while constructing new military posts on the Bighorn and Tongue Rivers.

Lakota activity increased by late September along the Yellowstone, and intelligence reports from scouts suggested that groups of Hunkpapa, Minneconjou, and Sans Arcs Sioux, along with Sitting Bull, were on the move to cross onto the north side of the river. Such rumors were further confirmed and the situation exasperated when on October 10th a wagon train of supplies heading towards the new Tongue River Cantonment, where Miles was headquartered, was attacked by Lakota on the north side of the river. The supply train was forced back to the cantonment on Glendive Creek.

Otis reinforced the train and with a command of about 185 men and set out on October 14th to retake the trail. Otis’ command reached the vicinity of Spring Creek on October 15th and was once again struck by Lakota warriors as it began to ford the creek. Otis’ command continued its movement near Cedar Creek the following morning. Lakota envoys were later admitted under a cease fire to meet with Otis and they asserted that he leave and give over food and am******on. Otis declined to turn his train around but did send the envoys on their way with an invitation to the Tongue River Cantonment to treat with Colonel Miles. The Lakota and Otis’ command went their separate ways with Otis providing “one hundred and fifty pounds of hard bread and two sides of bacon” to the Lakota and they in turn expressing their intention to first go north and trade at Fort Peck before coming to the Tongue River.

On Oct. 17th, as Otis and the Lakota parted ways, Colonel Miles became concerned at the delay of his supplies, and with ten companies of his regiment and one ordnance r***e for artillery, he moved up the Yellowstone, eventually reconnecting with Otis, who recounted the experiences of the wagon train. Miles sent Otis along with the supplies towards the cantonment while he directed his column northward to try and intercept Sitting Bull.

On Oct. 19th, Miles’ command moved to pursue Sitting Bull’s band. On the 20th, the command caught up with the Lakota, awaking to find a large number observing them from distant ridges. It was conveyed to Miles that Sitting Bull desired to meet and discuss the potential of surrender, and after relaying messages between both parties, such a meeting took place between the lines. After shaking hands, Miles, Sitting Bull, and their accompanying entourage all sat down upon a bison hide and shared in smoking a pipe.

Miles recollected in his memoirs his meeting of Sitting Bull, describing him as “a strong, hardy, sturdy looking man of about five feet eleven inches in heigh, well-built, with strongly-marked features…indicating determination and force…He was a man of few words and cautious in his expressions, evidently thinking twice before speaking. He was very deliberate in his movements and somewhat reserved in his manner.”

The historical record is vague on the details of the negotiations, but the main arguments of the parties stood that Sitting Bull demanded the removal of all soldiers from the Yellowstone country so they may pursue their traditional lifestyle and hunt while Miles demanded the immediate resignation of the Lakota to the authority of the United States and for them to come to the Tongue River Cantonment. Neither side made much progress in the persuasion of the others. As tensions rose and it became increasingly likely that either side considered attacking the other, it was decided to resign and resume negotiations the following day.

At 10 am on October 21st, the 5th Infantry once again marched from their night’s camp to meet the Lakota. Miles, who once again had his troops arrayed for battle, made the point to have his ordnance r***e placed upon a high rocky outcropping that allowed for a superior field of fire against the Lakota. Once again, both parties met for negotiations, and this time both appeared with more men. Miles had more officers along, and Sitting Bull with more principle Lakota figures. The tension from the previous day continued to grow as both Sitting Bull and Miles remained obstinate in their demands. Despite several other Lakota figures making clear that they were desirable of peace, Sitting Bull eventually became angered by Miles’ instance for surrender or force. Sitting Bull promptly stood and walked away with his Lieutenants following.

With the negotiations failed, Miles ordered his command forward with intentions to flush out the Lakota from the ridges before them. Initially, the advance began with no fire being exchanged as the Lakota started to amass on the central high ground while some fled northeast, but as a few Lakota men began to ignite grass in the path of the soldiers, Miles’ scouts opened fire and the battle of Cedar Creek was under way.

As Lakota fire intensified from concealed ravines, Miles deployed skirmishers and reserves to counter their attacks. Company H, under Lt. David Q. Rousseau, charged a high ridge on the left, forcing Lakota sharpshooters to abandon their position. Meanwhile, Miles’ artillery kept Lakota warriors at a distance as the infantry advanced through scattered gunfire and spreading grass fires. The soldiers soon occupied the largely abandoned Lakota encampment, repelled one final counterattack, and pursued Sitting Bull’s force for 18 miles before darkness forced them to stop. During the night, Sitting Bull and his followers withdrew east toward the Yellowstone. Miles reported two soldiers and several horses wounded, while Lakota casualties included at least five killed. Though the pursuit continued in the following days, the Battle of Cedar Creek had ended.

Good Morning from Fort Abraham Lincoln State Park!Reminder, as of today, October 21st, water access has been turned off ...
10/21/2026

Good Morning from Fort Abraham Lincoln State Park!

Reminder, as of today, October 21st, water access has been turned off for the season in our campground. That means water hookups at our modern sites are unavailable including access to our modern comfort stations (bathroom and shower buildings) as well as our dump station. But wait, camping reservations can still be made year round!

Campers staying at our modern sites can still utilize our electrical hook ups. Three vault toilets can found around the campground as well. For those needing water, a deep water line can be used at the southern end of the Visitor Center parking lot.

If you'd like to make a reservation, you can go online at reservendparks.com, call 800-807-4723, or by seeing our friendly team inside the Visitor Center any Tuesdays-Saturdays from 10am to 4pm. Happy camping!

Kids Bash was a blast! 🎃TONS of friends and family came out to the park for a great afternoon. There were wagon rides, a...
10/18/2026

Kids Bash was a blast! 🎃

TONS of friends and family came out to the park for a great afternoon. There were wagon rides, a spooky hike, lots of treats, the best costumes, and fun with our community first responders.

Thank you to everyone who came out, especially to the first responders who played games, handed out sweet treats, and showed off your cool vehicles!

Have a safe and fun Halloween season!

Park Operations UpdateWith temperatures steadily dropping, it is that time of year when water access in the campground c...
10/17/2026

Park Operations Update

With temperatures steadily dropping, it is that time of year when water access in the campground comes to an end. By next Wednesday, October 21st, Water service in the campground will be turned off for the season. This means water access will be unavailable at all of our camp sites, comfort stations, and the dump station. These facilities will reopen next spring.

Even though the water will be turned off, the park and campground are open year-round for camping, hiking, and winter adventures! Three vault toilets in the campground as well as two other vault toilets in park will remain open for use all winter. For those needing water, the park has a deep water line for use at the southern end of the Visitor Center parking lot.

Speaking of the Visitor Center, beginning tomorrow Sunday October 18th, the building be closed Sundays and Mondays until further notice. You can still visit the museum exhibits insider the Visitor Center every Tuesday-Saturday from 10 am to 4 pm.

We hope you've enjoyed another camping season with us this year. If you have any questions, please give us a call at 701-667-6340. See you in the park!

10/09/2026

Liquid Death Dirty Sodas now available at Haunted Fort ! Three spooky flavors to chose from: Witches Brew, Krampus Curse, and Smore Gore. Yes, you get to keep the cup.

Park UpdateAfter two days of work, our park team has cleared and cut away several over-hanging tree limbs along the road...
10/06/2026

Park Update

After two days of work, our park team has cleared and cut away several over-hanging tree limbs along the road going up to the Infantry Post. As of this late afternoon, the road is now open again to vehicle traffic daily. The road opens at sunrise and closes at sunset.

Our park Visitor Center is still open this week 10 am to 4 pm daily except for Mondays. Visitors can still explore the interior of several earthlodges at the On-A-Slant Village site as well.

What a fantastic fall day for the University of Mary to come out and volunteer for a Day of Service. Two groups came out...
09/30/2026

What a fantastic fall day for the University of Mary to come out and volunteer for a Day of Service.

Two groups came out to help place deer fence around young trees in the campground, while the other helped restore our historic earth lodges.

Thank you so much to the students and faculty for your hard work and time!

Happy first day of fall from Fort Abraham Lincoln!The park’s trees are slowing turning seasonal shades of yellows, orang...
09/22/2026

Happy first day of fall from Fort Abraham Lincoln!

The park’s trees are slowing turning seasonal shades of yellows, oranges, reds, and browns. All around, the prairie grass turns light brown and yellow as it waves in the blowing winds. There’s nothing quite like the park in fall, make sure you don’t miss the beautiful autumn colors this year!

Come on out to Fort Abraham Lincoln and take in the grandeur of nature! Need some tips on where to hike and see the best fall color spots? Ask our friendly team at the park Visitor Center, open Tuesday-Sunday every week from 10 am to 4 pm. See you in the park!

Address

4480 Ft. Lincoln Road
Mandan, ND
58554

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