Regional Interactive Maps
- North Branch
- Upper Potomac
- Potomac Piedmont
- Georgetown to Great Falls
- Mall Area
- Mount Vernon to the Mall
- Potomac Estuary
- Lower Potomac
Search Potomac Sites
Potomac River at Point of Rocks
River Monitoring Site
Federal and state agencies maintain river level monitors throughout the Potomac River Basin. The U.S.Geological Survey compiles real-time information from river monitors, in cooperation with the U.S. Army Corps of Engineers and the National Oceanic and Atmospheric Administration (NOAA).
Current stream conditions are shown in the graph below:
NOAA has an on-line river forecast service for the Potomac River at Point of Rocks summarized below.
For detailed USGS data on this site, select this link.
Nearby Potomac River Stream Monitors
To view a map of Potomac River Monitors, select this link.