Fort Union Trading Post National Historic Site is the site of a partially reconstructed trading post on the Missouri River and the North Dakota/Montana border twenty-five miles from
Fort Ancient is a collection of Native American earthworks located in Washington Township, Warren County, Ohio, along the eastern shore of the Little Miami River about seven miles (11 km) southeast
Crystal River State Archaeological Site is a 61-acre (250,000 m2) Florida State Park located on the Crystal River and within the Crystal River Preserve State