Catoctin Creek (Maryland)

{{Short description|Stream in Frederick County, Maryland, US}}

{{about|the creek in Maryland|the nearby creek in Virginia|Catoctin Creek (Virginia)}}

{{Use American English|date=February 2025}}

{{Infobox river|name=Catoctin Creek|image=Bennies Hill Road Bridge1.jpg|country=United States|mouth=Potomac River|mouth_coordinates={{coord|39.2756576|-77.5510994|display=inline}}|state=Maryland|region=Frederick County|river_system=Potomac River|cities=Myersville, Middletown, Frederick, Jefferson|source1=Ellerton, Maryland|source1_location={{coord|39.55113|-77.55205|display=inline}}|map=Catoctin md river map.png|etymology=Catoctin Mountain|mouth_location=Lander, Maryland|mouth_elevation={{Convert|217|ft|m|abbr=on}}|length={{Convert|27.9|mi|km|abbr=on}}|tributaries_left=Little Catoctin Creek, Lewis Mill Branch|tributaries_right=Little Catoctin Creek, Broad Run|basin_size={{convert|120.53|mi2|km2|abbr=on}}|discharge1_location=Lander, Maryland|discharge1_avg=145.01 cfs}}

Catoctin Creek is a {{convert|27.9|mi|km|adj=mid|-long}}U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. [http://viewer.nationalmap.gov/viewer/ The National Map] {{webarchive |url=https://web.archive.org/web/20120329155652/http://viewer.nationalmap.gov/viewer/ |date=2012-03-29 }}, accessed August 15, 2011 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.{{Cite web |date=2012-01-24 |title=Tributary Tuesday: Catoctin Creek (Frederick County, Md.) |url=https://www.chesapeakebay.net/news/blog/tributary-tuesday-catoctin-creek-frederick-county-md |access-date=2023-09-07 |website=Chesapeake Bay |language=en-US}} 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.

File:Catoctin Creek Aqueduct, C&O Canal, MD.jpg