Smiley Run is a 2.80 mi (4.51 km) long 2nd order tributary to the Youghiogheny River in Fayette County, Pennsylvania.

Smiley Run Tributary to Youghiogheny River
Location of Smiley Run mouth Show map of Pennsylvania Smiley Run (Youghiogheny River tributary) (the United States) Show map of the United States
Location
Country	United States
State	Pennsylvania
County	Fayette
Borough	Dawson
Physical characteristics
Source	Jacobs Creek divide
• location	about 1 mile south of Chaintown, Pennsylvania[1]
• coordinates	40°05′13″N 079°39′34″W[2]
• elevation	1,220 ft (370 m)[1]
Mouth	Youghiogheny River
• location	Dawson, Pennsylvania[3]
• coordinates	40°03′01″N 079°39′54″W[2]
• elevation	843 ft (257 m)[3]
Length	2.80 mi (4.51 km)[4]
Basin size	2.74 square miles (7.1 km2)[5]
Discharge
• location	Youghiogheny River
• average	3.73 cu ft/s (0.106 m3/s) at mouth with Youghiogheny River[5]
Basin features
Progression	generally south[4]
River system	Monongahela River
Tributaries
• left	unnamed tributaries
• right	unnamed tributaries
Bridges	Gillespie Road, Davis Road, Banning Road, Rimel Road, School Road

Course

Smiley Run rises about 1 mile south of Chaintown, Pennsylvania,[1] and then flows south to join the Youghiogheny River at Dawson.[3]

Watershed

Smiley Run drains 2.74 square miles (7.1 km²) of area, receives about 42.1 in/year of precipitation, has a wetness index of 344.85, and is about 44% forested.[5]

References

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