• Manassas National Battlefield Park

    Manassas

    National Battlefield Park Virginia

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  • Visitor Center Museum Closed During Construction Project

    The museum at the Henry Hill Visitor Center is closed due to the installation of a fire protection system in the exhibit area. The visitor center and gift shop remain open daily and the park film is shown hourly. More »

Watershed

Manassas National Battlefield Park
Manassas National Battlefield Park
NPS Photo
 
Manassas National Battlefield Park

Manassas National Battlefield Park

NPS Photo

Manassas National Battlefield Park lies in the Potomac River watershed, part of the largest estuary in the United States, the Chesapeake Bay Watershed. A watershed is an area of land in which all water runoff and tributaries drain into a specific body of water. All of the water from the park, including streams, rivers, and storm runoff eventually contributes to the Chesapeake Bay, depositing all of the nutrients and chemicals it acquires along the way. The Chesapeake Bay watershed hosts over 100,000 tributaries that stretch through 64,000 square miles of land to flow into the bay. The water from the watershed mixes with the Atlantic Ocean in a partially enclosed body of water, called the Chesapeake Bay estuary. The mixture of freshwater and salt water forms brackish water that provides critical habitat for an array of plants and animals. Estuaries serve as the spawning and nursery grounds for many aquatic creatures. The underwater grass beds and shallow waters provide protection from predators for juveniles to mature safely. Migratory birds stop in estuaries to feed and rest in the wetlands and marshes during migration season.

Did You Know?

Did you know?

Small mammal trapping is one way our Natural Resource Management team monitors the ecosystems and environmental conditions of the park. Frequent catches include mice, voles, and flying squirrels.