Fort Chiswell Site is a historic archaeological site located at Fort Chiswell, Wythe County, Virginia. It is the site of a frontier fort built in 1758 as an outpost during the French and Indian War. The fort was situated at the junction of the Great Trading Path and the Richmond Road, near the New River. The fort fell into disrepair in the 18th century as both the county seat and courthouse were moved from Fort Chiswell to the county seat of Wytheville, 12 miles to the west.