Alder Brook (West Branch French Creek tributary)

Alder Brook is a 2.93 mi (4.72 km) long tributary to West Branch French Creek classified as a 1st order stream by the EPA Waters Geoviewer.^[3]

Alder Brook Tributary to West Branch French Creek
Location of Alder Brook mouth Show map of Pennsylvania Alder Brook (West Branch French Creek tributary) (the United States) Show map of the United States
Location
Country	United States
State	Pennsylvania
County	Erie
Township	Venango
Physical characteristics
Source	divide between Alder Brook and LeBeouf Creek
• location	about 2 miles east of Bogus Corners, Pennsylvania
• coordinates	42°03′58″N 079°53′46″W[1]
• elevation	1,335 ft (407 m)[2]
Mouth	West Branch French Creek
• location	about 3 miles NNW of Lowville, Pennsylvania[2]
• coordinates	42°03′27″N 079°50′30″W[1]
• elevation	1,299 ft (396 m)[1]
Length	2.93 mi (4.72 km)[3]
Basin size	6.63 square miles (17.2 km2)[4]
Discharge
• location	West Branch French Creek
• average	12.63 cu ft/s (0.358 m3/s) at mouth with West Branch French Creek[4]
Basin features
Progression	West Branch French Creek → French Creek → Allegheny River → Ohio River → Mississippi River → Gulf of Mexico
River system	Allegheny River
Tributaries
• left	unnamed tributaries
• right	unnamed tributaries
Bridges	Wattsburg Road, Phillipsville Road

Course

Alder Brook rises in Venango Township in eastern Erie County, Pennsylvania, and flows east to meet West Branch French Creek north of Lowville.

Watershed

The Alder Brook watershed is part of the Erie Drift Plain (glacial geology) and covers an area of 6.63 square miles (17.2 km²). The watershed receives an average of 46.2 inches per year of precipitation and has a wetness index of 473.57.^[5] About 41% of the watershed is forested.^[4]