MapWar map, showing the vicinities of Baltimore & Washington, Scale ca. 1:450,000. LC Civil War Maps (2nd ed.), 241.5 "Entered according to act of Congress in the year 1861 by G. M. Hopkins." General map of eastern and central Maryland, Washington, D.C., and northern Virginia. Description derived from published bibliography. Available also through the Library of Congress web site as raster image.
- Contributor: Hopkins, Griffith Morgan
- Date: 1861