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 mi2 (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.