Potomac River Guide Home

Potomac River Monitoring Sites

Water levels are monitored by USGS. Stream gages feed data to a national system that allows real-time data to be displayed. In addition, sophisticated forecasting systems are avaialble for a number of sites from the National Oceanographic and Atmospheric Administration (NOAA). Click on a marker or choose a site below for details.

Potomac River Guide Interactive Maps

The Lower Potomac

The Potomac Estuary

Mount Vernon to Reagan Airport

Mall Area

Georgetown to Great Falls

Potomac Piedmont

Upper Potomac

The North Branch

Boat Ramps

Monitoring Sites

Bridges and Ferries

Cruises and Charters


Search Potomac Sites

Alexandria Waterfront Parks

Antietam Creek Near Sharpsburg MD

Cacapon River

Chesapeake Bay Interpretive Buoy

Conococheague Creek at Fairview MD

Georges Creek

Jennings Randolph Lake

Little Falls

Little Seneca Creek Near Clarksburg

Mattawoman Creek Near Pomonkey MD

Monocacy River and Water Trail

North Branch at Barnum WV

North Branch at Cumberland

North Branch at Luke

North Branch Potomac River at Kitzmiller MD

North Branch Potomac River at Steyer MD

Paint Branch near Colesville MD

Piscataway Creek at Piscataway

Potomac River at Hancock MD

Potomac River at Lewisetta VA

Potomac River at Paw Paw WV

Potomac River at Point of Rocks

Potomac River at Wisconsin Ave.

Rock Creek at Sherrill Drive

Savage River Reservoir

Seneca Creek at Dawsonville

Sideling Hill Creek Near Bellegrove MD

St. Mary's River at Great Mills

Tonoloway Creek Near Hancock

Town Creek Near Oldtown MD

Wills Creek Near Cumberland MD

Potomac River Guide Interactive Maps

The Lower Potomac

The Potomac Estuary

Mount Vernon to Reagan Airport

Mall Area

Georgetown to Great Falls

Potomac Piedmont

Upper Potomac

The North Branch

Boat Ramps

Monitoring Sites

Bridges and Ferries

Cruises and Charters


Search Delaware Sites

Potomac River Monitoring Sites

Water levels are monitored by USGS. Stream gages feed data to a national system that allows real-time data to be displayed. In addition, sophisticated forecasting systems are avaialble for a number of sites from the National Oceanographic and Atmospheric Administration (NOAA). Click on a marker or choose a site below for details.

Alexandria Waterfront Parks
Antietam Creek Near Sharpsburg MD
Cacapon River
Chesapeake Bay Interpretive Buoy
Conococheague Creek at Fairview MD
Georges Creek
Jennings Randolph Lake
Little Falls
Little Seneca Creek Near Clarksburg
Mattawoman Creek Near Pomonkey MD
Monocacy River and Water Trail
North Branch at Barnum WV
North Branch at Cumberland
North Branch at Luke
North Branch Potomac River at Kitzmiller MD
North Branch Potomac River at Steyer MD
Paint Branch near Colesville MD
Piscataway Creek at Piscataway
Potomac River at Hancock MD
Potomac River at Lewisetta VA
Potomac River at Paw Paw WV
Potomac River at Point of Rocks
Potomac River at Wisconsin Ave.
Rock Creek at Sherrill Drive
Savage River Reservoir
Seneca Creek at Dawsonville
Sideling Hill Creek Near Bellegrove MD
St. Mary's River at Great Mills
Tonoloway Creek Near Hancock
Town Creek Near Oldtown MD
Wills Creek Near Cumberland MD