The Navarre-Anderson Trading Post is a former trading post complex located at 3775 North Custer Road in Frenchtown Charter Township along the River Raisin in Monroe County, Michigan. It was listed as a Michigan Historic Site on June 16, 1972 and also listed on the National Register of Historic Places on July 31, 1972.The main building on the complex dates back to 1789, making it the oldest surviving wooden residential building in the state.