Fort Abraham Lincoln's building ruins were marked with cornerstones by the Civilian Conservation Corps as they developed the Park from 1934-1937. Decades later, the Fort's buildings (including the home of General George A. and wife Libby Custer and the Post Commissary) were reconstructed.
Today the fort looks much as it did in 1875, offering visitors a glimpse of US Army life onthe frontier.
In May of 1876, Gen. Custer rode out of Fort Abraham Lincoln with his cavalry to meet their fate at Little Big Horn. See (
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From Wikipedia, more on the history of this fort: (
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"Fort Abraham Lincoln (1872-1891) - A U.S. Army post first established as Fort McKeen (1) and then renamed Fort Abraham Lincoln on 19 Nov 1872. The post was located near present day Mandan in Morton County, North Dakota. Congress authorized the addition of a Cavalry Post in 1873. Lieutenant Colonel (Bvt Major General) George A. Custer was the first commander of the enlarged fort and served here from 1873 until the Battle of the Little Big Horn in 1876. Abandoned in 1891.
Constructed in June 1872 by Companies B and C of the 6th U.S. Infantry to protect the construction of the Northern Pacific Railroad. The initial post was located on a high bluff overlooking the confluence of the Missouri River and the Heart River and was known as Fort McKeen. Fort McKeen was built as an infantry post with three blockhouse and a partial palisade, unsuited for cavalry operations. It was soon realized that the mission required mounted cavalry and that the new post was unsuited for those troops. A second post was begun below the first one. The new post was begun in late 1872 as a six company cavalry post and on 3 Mar 1873 Fort Abraham Lincoln was authorized by act of Congress. The newly created fort encompassed both the infantry post and the cavalry post.
The first commander of the combined post was Lieutenant Colonel (bvt Major General) George A. Custer. By 1874 the fort housed nine companies with about 650 men, three companies of the 6th U.S. Infantry and 17th U.S. Infantry and six companies of the 7th U.S. Cavalry. The fort was among the largest and most important on the Northern Plains.
Custer and the 7th Cavalry departed from Fort Lincoln on 17 May 1876 in a campaign to round up the remaining plains Indians. Several Indian tribes had come together at the Little Bighorn River at the behest of Chief Sitting Bull to discuss what to do about the white man. Custer 's command came upon this large encampment, he split his forces into three battalions and attacked. A series of missteps and an underestimations of Indian strength caused the initial attack by Major Marcus Reno to falter and fail. Thousands of Indians then attacked Custer remaining men who were forced to ground by the overwhelming force. Custer and all his men were killed in the final stand.
Fort Abraham Lincoln remained the headquarters of the 7th U.S. Cavalry until June of 1882, when the 7th U.S. Cavalry and its headquarters were transferred to Fort Meade in South Dakota. After the railroad to Montana was complete the fort gradually declined in importance and was finally abandoned per G.O. 50, 1891.
At its height Fort Abraham Lincoln had 78 separate buildings. Many of those original buildings were dismantled by settlers and used in the construction of homes and farms.
President Theodore Roosevelt signed the deed to the land to the state in 1907 as Fort Abraham Lincoln State Park. In 1934, the Civilian Conservation Corps built a visitor center, shelters, and roads. They also reconstructed military blockhouses and placed cornerstones to mark where fort buildings once stood, as well as replicating Mandan earthen lodges. Additional reproductions have since been built on the site creating a replica Mandan village, called "On-a-Slant Village." The park also includes a campground and picnic area.
The Victorian-style home of George and Libbie Custer has been reconstructed and is open for tours. The commissary storehouse, the enlisted men's barracks, the granary and the stable have also been reconstructed on the Cavalry Post. Three replicated blockhouse are located on the upper Infantry post.
A separate visitor center is located on the lower level along the road between the lower cavalry post and the upper infantry post. The Mandan village, "On-a-Slant Village" is located behind this visitor center."