The largest greenspace in metropolitan Washington, D.C. and the largest example of Piedmont forest within the entire National Park system. Prince William Forest Park is a delightful and surprising oasis. It’s nearly 13,000 acres offer a respite of quiet and calm with fragrant woods and trickling streams that have welcomed generations of campers, hikers, bikers and nature lovers since the 1940s.
Prince William Forest Park protects the South Fork of Quantico Creek, as well as 80 percent of the Quantico Creek Watershed. In fact, the creek is of such high water quality that it is used as a reference steam by which to measure the water quality of other streams throughout Northern Virginia. Additionally, within the park’s boundaries, are 18 miles of streams and two impoundments that are open to fishing.
For its incredible collection of plant species, Prince William Forest Park has been ranked the second most pristine forest among national parks in the eastern United States. From the smallest wildflower to the tallest tree, each of the 900 plant species within Prince William Forest Park has a special role to play in this forest ecosystem.
It has also been identified as one of the most intact interior forest bird communities; its 129 bird species include 15 species of continental concern. It is also home to 46 species of mammals, 22 species of amphibians, 25 reptile species, 26 fish species, and an unknown number of invertebrates.