Fort Union Trading Post was the most important fur trading post on the upper Missouri from 1828 to 1867. At this post, the Assiniboine, Crow, Cree, Ojibway, Blackfeet, Hidatsa, and other tribes traded buffalo robes and other furs for trade goods such as beads, guns, blankets, knives, cookware, and cloth.

The site offers a short film, exhibits, demonstrations, educational programs, and occasional recreational and educational events (including living history events).

Visitors to Steamtown can feel the heat from the firebox, hear the bell and whistle, smell the hot steam and oil of a past era. They can feel the ground vibrate under their feet, see the one-ton drive rods turn the wheels, and hear the chuff-chuff-chuff of the smokestack. Today, visitors can relive the era of steam as the engines come back to life. The cinders, grease, oil, steam, people, and stories of railroading have returned at Steamtown. Visitors may tour the History and Technology Museums or Roundhouse, explore special exhibits, or watch the movie "Steel and Steam." They can also join a Park Ranger or Volunteer on a guided tours of the Locomotive Repair Shops. Seasonally, visitors may want to experience the short train rides, longer train excursions, or Living History Programs.

The site offers a short film, exhibits, tours, educational programs, demonstrations, train rides, longer film screenings, and occasional recreational and educational events (including living history events).

Fort Churchill was once an active U.S. Army fort. Built in 1861 to provide protection for early settlers, it was abandoned nine years later, and today the ruins are preserved in a state of arrested decay. A visitor center displays information and artifacts of the fort's history. The Pony Express and the Overland Telegraph once passed through this area. Nearby is Buckland Station, a Pony Express stop, supply center, and a former hotel built in 1870.

The site offers exhibits.

Fort Leaton State Historic Site consists of 23.4 acres, five of which are the site of a pioneer trading post. In 1848, Ben Leaton built a fortified adobe trading post known as Fort Leaton. He dominated border trade with the Apache and Comanche Indians before he died in 1851.

The park is day-use only and offers picnicking areas, guided tours, plus exhibits on the history from 15th century, natural history, and archaeological history of the area. The site serves for historical study activities.

At Monument Hill, a crypt and granite monument honor the men who died in the 1840s Dawson Massacre and Black Bean Death Lottery. The nearby Kreische House and Brewery preserve the life and work of Heinrich L. Kreische and other early European immigrants who settled the area.

The sites offer tours.

Last president of the Republic of Texas Anson Jones farmed near Washington during and after his presidency. Jones named his farm "Barrington" after his Massachusetts home, Great Barrington. There he lived with wife Mary, their four children, his sister, sister-in-law, and five slaves. The family home, two slave cabins, a kitchen building, smokehouse, cotton house, and barn made up Barrington Farm. With Jones's daybook as their guide, the interpreters at Barrington Living History Farm conduct themselves much as did the earliest residents of the original farmstead. The Jones home is original; the outbuildings are replicas constructed by Texas Parks and Wildlife using Jones's own journal and drawings. Visitors to the farm can experience the sights, smells, and sounds of the 19th century. The scene is complete with heritage breeds of livestock. Interpreters, dressed in period style clothing, help visitors better understand what life was like 150 years ago. Visitors can participate in the work of the farm and become a part of the exhibit.

The farm offers demonstrations, tours, classes, educational programs, and occasional recreational and educational events (including living history events).