Bull Run Mountains Natural Area Preserve

Bull Run Mountains Natural Area Preserve is a 2,486-acre (10.06 km²) Natural Area Preserve located along the Bull Run Mountains in Fauquier and Prince William counties, Virginia. Dedicated in 2002, the majority of the preserve is owned by the Virginia Outdoors Foundation. It harbors a number of outstanding natural community types, some of which are rare in the Commonwealth. There are also quartzite cliffs and boulder fields around High Point Mountain within the preserve's boundaries.

The preserve is part of the Virginia Outdoors Foundation's Bull Run Mountains Special Project Area, which encompasses 12,800 acres (52 km²). On November 25, 2014, the Virginia Outdoors Foundation announced that they would be closing the High Point cliff area on the preserve for an indefinite period of recovery and restoration, starting January 15, 2015.