Browse Map

Explore away

Explore Map Collection

Check out our basemaps

Print a Map Plus

Generate a high-quality PDF

Field Guide

Discover local flora, fauna, geology, and more

Local Flora & Fauna

Learn the ecology of your area

Local Geology

Learn the geologic formation at your feet

Get Started or Sign In

Welcome

Continue with Apple

Already have an account? Sign In

MAP

Topo

Measure

Topo

Ecoregions

Public Lands

...

BASEMAPS

Default Weather

Temperature

Smoke

...

WEATHER

Occoquan River

River in Piedmont in Laurel Hill in VA, MD

Virginia Fishing Regulations

Maryland Fishing Regulations

Print Map

Generate High-Quality PDF

Length

30mi

On the Web

On Wikipedia

The Occoquan River is a tributary of the Potomac River in Northern Virginia, where it serves as part of the boundary between Fairfax and Prince William counties. The river is 24.7 miles (39.8 km) long, and its watershed covers about 590 square miles (1,528 km2). It is formed by the confluence of Broad Run and Cedar Run in Prince William County; Bull Run, which forms Prince William County's boundary with Loudoun and the northerly part of Fairfax counties, enters it east-southeast of Manassas, as the Occoquan turns to the southeast. It reaches the Potomac at Belmont Bay. The Occoquan River is part of the Chesapeake Bay watershed. The name Occoquan is derived from a Doeg Algonquian word translated as "at the end of the water". The river is a scenic area, and many local high schools and…

Classified As

River