| Mattawoman Creek | |
|---|---|
 Freshwater-tidal estuary of Mattawoman Creek | |
 | |
| Location | |
| Country | United States |
| State | Maryland |
| Counties | Charles and Prince George's counties |
| Physical characteristics | |
| Mouth | |
• location | Potomac River |
• elevation | 0 feet (0 m) |
| Length | 30.0 miles (48.3 km) |
Mattawoman Creek is a 30.0-mile-long (48.3 km)[1] coastal-plain tributary to the tidal Potomac River with a mouth at Indian Head, Maryland, 20 miles (32 km) downstream of Washington, D.C. It comprises a 23-mile (37 km) river flowing through Prince George's and Charles counties and a 7-mile (11 km) tidal-freshwater estuary in Charles County. About three-fourths of its 94-square-mile (240 km2) watershed lies in Charles County, with the remainder in Prince George's County immediately to the north.
- ^ U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. The National Map Archived 2012-03-29 at the Wayback Machine, accessed August 15, 2011