Alder Run (French Creek tributary)

Alder Run is a 4.52 mi long third-order tributary to French Creek in Erie County.

Course
Alder Run rises about 3 miles northwest of Beaver Dam, Pennsylvania, and then flows northwesterly to join French Creek about 3 miles southwest of Wattsburg, Pennsylvania.

Watershed
Alder Run drains 7.07 sqmi of area, receives about 46.3 in/year of precipitation, and is about 36% forested.