The Fort Laramie National Historic Site commemorates Fort Laramie. Originally constructed in 1841 as a privately owned fur trade fort, the settlement was known as Fort John. It acquired its new name in 1849, after the U.S. Army purchased the outpost in order to protect travelers on the Oregon Trail from the local Native American populations. The United States and the Plains Indians honored the Treaty of 1851, which demanded peace from both parties, for only three years. During the 1860s, fort soldiers were primarily concerned with maintaining nearby telegraph wires. Collections include 19th-century frontier artifacts.

The fort offers an 18-minute introductory film, exhibits, Junior Ranger activities, and an audio tour for rental. The audio tour includes narration, readings from primary source documents, and soundscapes. The website offers a virtual tour.

From Crazy Horse to the cavalry to the K-9 Corps, Fort Robinson played host to them all. Visitors to the site can experience the long and varied history of this outpost on the Plains. The museum at Fort Robinson is located in the 1905 post headquarters building. Museum exhibits trace the history from the post's role guarding the Red Cloud Agency (1874–77) through the housing of World War II German POWs (1943–46). Among the many fascinating objects in the museum's exhibits are the only known dog kennel from the K-9 Corps of World War II; marksmanship medals earned by Caleb Benson, a Buffalo Soldier at Fort Robinson between 1902 and 1909; and 19th-century Sioux objects related to the Red Cloud Agency. Visitors can explore more than a dozen historic structures and sites such as the 1904 blacksmith shop, the 1908 veterinary hospital, the 1887 officers' quarters, the 1875 guardhouse and adjutant's office, and the old post cemetery.

The site offers exhibits, tours, research library access, and occasional recreational and educational events.

The Fort Assinniboine Historic Site preserves the site of what was once the largest military fort west of the Mississippi River, with 104 structures over 700,000 acres. Founded in 1879, the soldiers of Fort Assinniboine protected settlers from Sitting Bull's Lakota Sioux and other Native Americans. Other responsibilities included patrolling the U.S.-Canada border and preventing the Blackfoot Confederacy, Montana Indian Reservations, and Canadian Native Americans from acting against Euro-American settlers. The fort's location was selected as the nexus of several Native American trails. The site currently serves as an agricultural research center.

The site offers guided tours. Reservations are required for groups.

The Adams Museum and House seeks to preserve and share the history of Deadwood, South Dakota and the surrounding Black Hills. The Adams Museum collections include folk art, Lakota artifacts, and Wild Bill Hickok's (1837-1876) gun, among other items. Other figures represented in the collections include Calamity Jane (1852-1903) and Deadwood Dick, a fictional character whose name was used by a variety of individuals. The Adams House is a 1892 Queen Anne Victorian, abandoned entirely furnished in 1934, which now functions as a circa 1900 house museum.

The museum offers three floors of exhibits and self-guided tours. The house offers period rooms and an orientation exhibit.

Bear Butte has a human history of more than 10,000 years. The site has long been considered sacred by select Native American groups, and the Lakota and Cheyenne still visit the site to worship. Aside from the mountain's significance to the Native American population, the landmark served as a guide for prospectors entering the Black Hills after Lt. Colonel George A. Custer's discovery of area gold deposits in 1874.

The center offers exhibits on the geology and history of the mountain, as well as the beliefs of the Northern Plains peoples—particularly the Cheyenne and Lakota. Note that a buffalo herd lives near the butte. Visitors are asked to keep their distance from the buffalo for their personal safety.