Connell Run rises about 1.5 miles west-southwest of Pleasant Hill, Pennsylvania,[2] and then flows west to join the Youghiogheny River at Connellsville.[3]
Watershed
Connell Run drains 3.78 square miles (9.8 km2) of area, receives about 45.5 in/year of precipitation, has a wetness index of 339.82, and is about 70% forested.[5]
Natural history
Connell Run is the location of Connell Run BDA. The slopes on Connell Run provide habitat for a plant of special concern.[6]