Fort Simcoe, a former United States Army post in south-central Washington, was built in the late 1850s along a long-used Yakama travel route and occupied for only three years. Designed by Louis Scholl, it formed part of a broader army effort to connect Washington Territory with California. More significantly, it became closely associated with coercive federal policies toward the Yakama and other tribes, including the consolidation of 14 tribes, suppression of Native languages and customs, renaming, and the forced schooling of Native children. Later preserved as a state park, it now interprets both army life and the Native histories shaped and harmed by the site.