Gap was fought on the mountain prior to the Second Battle of Manassas during the American Civil War. Peaks and gaps Peaks (from north to south) Aldie Mountain [] Long Hill Mountain [] Bull Run Ridge [] High Acre Ridge [] Griffen Mountain [] Fishback Ridge [] Signal Mountain [] High Point Mountain [] Bisquit Mountain [] Pond Mountain [] Gaps (from north to south) Buchannon Gap [] Cold Spring Gap [] Hopewell Gap [] Thoroughfare Gap [] Notes External links Virginia Outdoors Foundation - Bull Run Mountains Natural Area Preserve Bull Run Mountains Conservancy, Inc. (BRMC) Prince William Conservation Alliance Mountain ranges of Virginia Blue Ridge Mountains Mountains of Fauquier County, Virginia Mountains of Loudoun County, Virginia Mountains of Prince William County, Virginia Northern Virginia