Dolly Run is a long 2nd order tributary to Shirley Run in Crawford County, Pennsylvania.
According to the Geographic Names Information System, Dolly Run has also been known historically as:
Dolly Run rises about 0.5 miles west of Rendalls Corners, Pennsylvania, and then flows south-southeast to join Shirley Run at Cloverdale Corners.
Dolly Run drains of area, receives about 45.6 in/year of precipitation, has a wetness index of 438.49, and is about 46% forested.