Rock Creek (Potomac River tributary)
| Rock Creek | |
|---|---|
Rock Creek in Washington, D.C., in 2015 | |
| Location | |
| Country | United States |
| States | Maryland, District of Columbia |
| Counties | MD: Montgomery DC: City of Washington |
| Physical characteristics | |
| Source | |
| • location | Laytonsville, Maryland |
| • coordinates | 39°11′56″N 77°08′20″W / 39.1990012°N 77.1388044°W |
| • elevation | 560 feet (170 m) |
| Mouth | |
• location | Potomac River |
• coordinates | 38°53′58″N 77°03′26″W / 38.899556°N 77.0572°W |
• elevation | 0 feet (0 m) |
| Length | 32.6 mi (52.5 km) |
| Basin size | 76.5 mi2 (198 km2) |
| Discharge | |
| • average | 63.7 cu ft/s (1.80 m3/s) |
| Basin features | |
| Landmarks | Rock Creek Park |
| Waterbodies | Lake Needwood |
Rock Creek is a tributary of the Potomac River, in the United States, that empties into the Atlantic Ocean via the Chesapeake Bay. The 32.6-mile (52.5 km) creek drains about 76.5 square miles (198 km2). Its final quarter-mile (400 m) is affected by tides.