Fort Buford State Historic Site preserves remnants of a vital frontier plains military post. Fort Buford was built in 1866 near the confluence of the Missouri and Yellowstone Rivers, and became a major supply depot for military field operations. Original features still existing on the site include a stone powder magazine, the post cemetery site, and a large officers' quarters building which now houses a museum. Fort Buford, located near present-day Williston, was one of a number of military posts established to protect overland and river routes used by immigrants settling the West. While it served an essential role as the sentinel on the northern plains for 19 years, it is probably best remembered as the place where the famous Hunkpapa Sioux leader, Sitting Bull, surrendered in 1881.

The site offers a short film, tours, exhibits, and occasional recreational and educational events.

At the Fort location the visitor will find an interpretive center with exhibits, videos, and self-guided tours of the fort and outlying sites. The fort tour leads the visitor through the site to building locations, archaeological remains, and interpretive signs pinpointing the surrounding historic landmarks. A Civilian Conservation Corp Cabin has been refurbished to depict the quarters of an Officer's wife and a Non-Commissioned Officer's Quarters. The two satellite sites of Fort Phil Kearny are the Fetterman Fight and the Wagon Box Fight battlefields. Maps to the sites and interpretation are available at the Visitor Center. At both battlefields, the visitor will find an interpretive trail which leads through the battle providing both Indian and White perspectives of the conflict. The visitor can go to the actual locations of the skirmish lines and Indian charges and see the weapons and personnel involved.

A second website for this site can be found here.

The site offers short films, exhibits, tours, and occasional recreational and educational events (including living history events).

The Traverse des Sioux location was a meeting place and crossroads for centuries, and was frequented by American Indians and European fur traders and farmers. In 1850, with the passing of a treaty in 1851 the land at Traverse des Sioux became open to the public. Within a year, a booming town was located on the site, with a population of over 300. Less than two decades later, another town was chosen as the county seat, and nothing was left of Traverse des Sioux.

The Historic Site offers self guided tours and hiking. The website offers a brief history of the location and visitor information.