A map of operations for the First Battle of Bull Run or First Battle of Manassas, the initial major land battle of the American Civil War, July 21, 1861. The map shows Bull Run Creek, the towns of Manassas, Centerville, the Stone Bridge, Warrenton Turnpike, Sudley Road, railroads, the strategic fords of Bull Run Creek, the route of the Union Army, and battle positions of Evens, Cocke, Bee, Bonham, Longstreet, Jackson, Early, Holms, and Ewell.