This 11-acre historic park, part of The Manassas Museum System, contains one of only two surviving Civil War fortifications in the City of Manassas. The earthwork was built by Confederate troops in the spring of 1861 as part of the Manassas Junction defenses, on the Hooe family farm, Mayfield. The historic site contains the Mayfield house foundation and the Hooe family cemetery, as well as walking trails, interpretive markers, and reproduction cannon.