Fort Simcoe State Park is a 200-acre, day-use heritage park in south central Washington on the Yakama Indian Nation Reservation. The park is primarily an interpretive effort, telling the story of mid-19th century army life and providing insights into the lifeways of local Native American culture. Located in the foothills of the Cascade Mountains in an old oak grove watered by natural springs, Fort Simcoe was an 1850's-era military installation established to keep peace between the settlers and the Indians.
	The building of Fort Simcoe was started in 1856, and was turned over to the Department of Indian Affairs in 1859. The fort was abandoned in 1923 when the agency moved to Toppenish. In 1953, a cooperative effort between Washington State Parks, the Yakima Indian Nation, Bureau of Indian Affairs, and other local organizations, began to restore Fort Simcoe.
	Due to its unique historic significance, the park was placed on the National Register of Historic Places in June, 1974. Before the fort era, the site was an Indian campground where many trails crossed.