From its headwaters in Crofton, the River enters the Chesapeake Bay south of the City of Annapolis, hence the name South River. The iconic Thomas Point Lighthouse marks the River’s entrance.
The drainage area of the South River Watershed is approximately 36,433 acres and supports approximately 66,000 residents. Roof tops and roads and other impervious surfaces comprise approximately 4,432 acres or 12%. Biologists start to see impairments to wildlife when impervious surfaces reach above 5%.
- Forest 16,669 acres (46%)
- Urban 14,251 acres (39%)
- Agriculture 5,472 acres (15%),
- Wetlands 132 acres (<1%)
- Barren land 4 acres (<1%)
