Map of Patuxent River Watershed

The Patuxent River is a tributary of the Chesapeake Bay in the state of Maryland. There are three main river drainages for central Maryland: the Potomac River to the west passing through Washington, D.C., the Patapsco River to the northeast passing through Baltimore, and the Patuxent River between the two. The 908-square-mile Patuxent wate…
The Patuxent River is a tributary of the Chesapeake Bay in the state of Maryland. There are three main river drainages for central Maryland: the Potomac River to the west passing through Washington, D.C., the Patapsco River to the northeast passing through Baltimore, and the Patuxent River between the two. The 908-square-mile Patuxent watershed had a rapidly growing population of 590,769 in 2000. It is the largest and longest river entirely within Maryland, and its watershed is the largest completely within the state.
  • Country: United States
  • State: Maryland
  • Major cities: Columbia, Laurel, Bowie, Upper Marlboro
  • Mouth: Chesapeake Bay
  • Length: 115 mi (185 km)
  • Basin size: 908 sq mi (2,350 km²)
Data from: en.wikipedia.org