St. Marys River (Maryland) facts for kids
Quick facts for kidsSt. Marys River
|County||St. Mary's County|
|River mouth||Potomac River
0 feet (0 m)
|Length||22.3 miles (35.9 km)|
The St. Marys River (sometimes spelled St. Mary's River) is a 22.3-mile-long (35.9 km) river in southern Maryland in the United States. It rises in southern St. Mary's County, and flows to the southeast through Great Mills, widening into a tidal estuary near St. Mary's City, approximately 2 miles (3 km) wide at its mouth on the north bank of the Potomac River, near the Chesapeake Bay to the east.
St. Marys River (Maryland) Facts for Kids. Kiddle Encyclopedia.