Potomac River Guide Home

Interactive Maps

The Lower Potomac
The Potomac Estuary
Mount Vernon to Anacostia River
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

Also Explore

The Hudson River Guide The Delaware River Guide
NEW! The Connecticut River Guide

Rock Run

Maryland Tributary

The Rock Run watershed includes several parks in Montgomery County, Maryland. The 5.3-mile long stream runs through the village of Potomac.

Suggested Links

Click here for larger map and nearby sites.

Contact Information
Maryland Department of Natural Resources

MD

Website