Monocacy River

The Monocacy River is a free-flowing left tributary to the , which empties into the Atlantic Ocean via the . The river is 58.5 miles long, with a drainage area of about 970 square miles.

Notable Places in the Area

The — or C&O Canal Aqueduct No. 2 — is the largest aqueduct on the , crossing the Monocacy River just before it empties into the in , USA. is situated 680 feet northeast of Monocacy River. Photo: Qblik, CC BY-SA 3.0.

Railway station
Dickerson is a passenger rail station on the MARC Brunswick Line between Washington, D.C., and Martinsburg, WV. is situated 1½ miles east of Monocacy River. Photo: Wikimedia, CC BY-SA 2.0.

Localities in the Area

is an Unincorporated community in . is situated 1½ miles east of Monocacy River. Photo: Bonnachoven, CC0.

is a small unincorporated community in southern , in the U.S. state of . is situated 2½ miles north of Monocacy River. Photo: Rick Calvert, CC0.

is an unincorporated community in , , United States. is situated 4 miles southeast of Monocacy River. Photo: Famartin, CC BY-SA 4.0.

Monocacy River

39.2229° or 39° 13' 22.4" north
-77.4542° or 77° 27' 14.9" west
Open Location Code
197 feet (60 metres)
Geo­Names ID

Also Known As

  • Catalan: Monocacy
  • Chuvash: Монокаси
  • Dutch: Monocacy River
  • Egyptian Spoken Arabic: نهر مونوكاسى
  • French: Monocacy River
  • German: Monocacy River
  • Irish: Abhainn Monocacy
  • Polish: Monocacy River
  • Russian: Монокаси
  • Venetian: Monocacy
  • Welsh: Afon Monocacy
  • Cheoow-quoquey
  • Manakassey River
  • Manakassy River
  • Manakosy River
  • Manocacy River
  • Minocacy River
  • Minorcacee River
  • Monacacy River
  • Monocasey Creek
  • Monoccasy River
  • Monoceasie Creek
  • Monoceasy River
  • Monockasey Creek
  • Monockesey Creek
  • Monocoey River
  • Monokasy Creek
  • Northeast Branch Potomac River
  • Quataro River
  • Quattaro River
  • River of the Turkey
  • Riviere de Coturki
  • Upper Monocacy
  • Upper Monocacy River

In the Area



Other Places

Explore Your World

Popular Destinations in Frederick County

A good traveler has no fixed plans and is not intent on arriving.  

Escape to a Random Place

About Mapcarta. Thanks to Mapbox for providing amazing maps. Text is available under the CC BY-SA 4.0 license, excluding photos, directions and the map. Based on the page Monocacy River. See this page's contributions. Photo: Malepheasant, CC BY-SA 2.5.