Smiley Run (Youghiogheny River tributary)

Smiley Run is a 2.80 mi long 2nd order tributary to the Youghiogheny River in Fayette County, Pennsylvania.

Course
Smiley Run rises about 1 mile south of Chaintown, Pennsylvania, and then flows south to join the Youghiogheny River at Dawson.

Watershed
Smiley Run drains 2.74 sqmi of area, receives about 42.1 in/year of precipitation, has a wetness index of 344.85, and is about 44% forested.