Signal Hill is a historic Confederate Army military site in Prince William County, Virginia.

From this location, a signal station atop the hill, Confederate observers in 1861 spotted Union Army troops attempting to cross Sudley Ford.

The Confederate response to this maneuver initiated the First Battle of Bull Run.

[2] The site was listed on the National Register of Historic Places in 1989.

This article about a property in Prince William County, Virginia on the National Register of Historic Places is a stub.