MapPlan of works erected at Centreville, Va., by Union forces. Under direction of Genl. Barnard Chief Engineer of Department of Washington. Map shows the area surrounding Centreville in Fairfax County , Va., and includes the locations of abandoned Confederate fortifications on the outskirts of the town.
- Contributor: Sneden, Robert Knox - Barnard, J. G. (John Gross)
- Date: 1861