Gravel Run is a long 2nd order tributary to French Creek in Crawford County, Pennsylvania.
According to the Geographic Names Information System, it has also been known historically as:
Gravel Run rises about 1.5 miles west of Pinney Corners, Pennsylvania, and then flows generally west-northwest to join French Creek about 1.5 miles west of Woodcock, Pennsylvania.
Gravel Run drains of area, receives about 44.9 in/year of precipitation, has a wetness index of 436.22, and is about 53% forested.