Catoctin Creek (Maryland)

Catoctin Creek
EtymologyCatoctin Mountain
Location
CountryUnited States
StateMaryland
RegionFrederick County
Physical characteristics
SourceEllerton, Maryland
  location39°33′04″N 77°33′07″W / 39.55113°N 77.55205°W / 39.55113; -77.55205
MouthPotomac River
  location
Lander, Maryland
  coordinates
39°16′32″N 77°33′04″W / 39.2756576°N 77.5510994°W / 39.2756576; -77.5510994
  elevation
217 ft (66 m)
Length27.9 mi (44.9 km)
Basin size120.53 sq mi (312.2 km2)
Discharge 
  locationLander, Maryland
  average145.01 cfs
Basin features
River systemPotomac River
CitiesMyersville, Middletown, Frederick, Jefferson
Tributaries 
  leftLittle Catoctin Creek, Lewis Mill Branch
  rightLittle Catoctin Creek, Broad Run

Catoctin Creek is a 27.9-mile-long (44.9 km) tributary of the Potomac River in Frederick County, Maryland, US. Its source is formed north of Myersville. In Myersville, it merges with the Little Catoctin Creek at Doub's Meadow Park. From there, it flows directly south through Middletown, and the southern Middletown Valley for the entire length of the stream collecting several smaller tributaries. It makes a crossing with the Chesapeake and Ohio Canal at the Catoctin Aqueduct, one of just 11 of these structures to survive. Catoctin Creek enters the Potomac River east of Brunswick.