The Thoroughfare Gap Battlefield was listed on the National Register of Historic Places in 1999. The Civil War Trust (a division of the American Battlefield Trust) and its partners have acquired and preserved of the battlefield. The battlefield is accessible from a walking trail adjacent to the ruins of Chapman's Mill, located north of Interstate 66 on Beverly Mill Drive. Sharpshooters used the mill's upper floor windows to defend the pass. Historic and wayside markers are placed along Virginia Route 55 just south of the mill.