Richmond Defences
Advanced Works of the Outer Line
Running Southeastward and then Southwestward. A Confederate earthwork, three miles long, here crossed the Darbytown Road. This fortification was designed to cover the Main Outer Line, with which it connected, one mile North of this point.
Marker is on Darbytown Road ½ mile east of Strath Road, on the right when traveling east.
Courtesy hmdb.org