Muddy Branch is a tributary stream of the Potomac River in Montgomery County, Maryland, United States, located about 14 miles (23 km) northwest of Washington, D.C.

Muddy Branch
Muddy Branch Stream near Esworthy Rd
Location
Country	United States
State	Maryland
Counties	Montgomery
Physical characteristics
Source
• location	Gaithersburg, MD
Mouth	Potomac River
• location	North of Pennyfield Lock, Potomac, MD
• coordinates	39°03′16″N 77°17′37″W
Length	11.9 miles (19.2 km)

Course

The headwaters of the stream originate in Gaithersburg, and the stream flows southwest for 11.9 miles (19.2 km),[1] through Muddy Branch Park and Blockhouse Point Conservation Park, under the Chesapeake and Ohio Canal near Pennyfield Lock, to the Potomac River.

Tributaries

• Decoverly Tributary
• Dufief Tributary
• Lakes Tributary
• Pennyfield Lock Tributary
• Potomac Grove Tributary
• Query Mill Tributary
• Quince Orchard Knolls Tributary
• Rich Branch
• Route 28 Tributary

Recreation

Parts of Muddy Branch flow through Blockhouse Point Conservation Park and the Muddy Branch Stream Valley Park. The Muddy Branch Greenway Trail is a 9 miles (14 km) long natural surface trail that runs from the Potomac River to Darnestown Road.[2] along Muddy Branch. There is a boat ramp on Muddy Branch just before it goes under the C & O canal that can be used by small boats (such as canoes and kayaks) to access the Potomac River.[3]

• Different parts of Muddy Branch
• 
  Muddy Branch, crossing under the Chesapeake and Ohio Canal, just before emptying into the Potomac River
• 
  Muddy Branch Stream and the Muddy Branch Greenway Trail
• 
  Muddy Branch near Quince Orchard Road in North Potomac, Maryland
• 
  Muddy Branch Stream behind Morris Park, Gaithersburg, Maryland

See also

• List of Maryland rivers

References

External links

• Muddy Branch and Watts Branch Subwatersheds Implementation Plan (2012) - Montgomery County Department of Environmental Protection
• Muddy Branch Alliance - Community watershed group