George Rogers Clark National Historical Park, located in Vincennes, Indiana, on the banks of the Wabash River at what is believed to be the site of Fort Sackville, is a United States National Historical Park. President Calvin Coolidge authorized a classical memorial and President Franklin D. Roosevelt dedicated the completed structure in 1936.

Vincennes is a city in and the county seat of Knox County, Indiana, United States. It is located on the lower Wabash River in the southwestern part of the state, nearly halfway between Evansville and Terre Haute. Founded in 1732 by French fur traders, notably François-Marie Bissot, Sieur de Vincennes, for whom the Fort was named, Vincennes is the oldest continually inhabited European settlement in Indiana and one of the oldest settlements west of the Appalachians. The population was 16,759 at the 2020 census.