Mill Run is a tributary to

Neshannock Creek Neshannock Creek is a long tributary to Shenango River that forms at the confluence of Cool Spring and Otter Creek in Mercer County and then flows south to Lawrence County, Pennsylvania. This creek is known for its fly fishing at Volant, Penns ...

in western Pennsylvania. The stream rises in southeastern Mercer County and flows generally northwest entering Neshannock Creek near Milburn, Pennsylvania. Mill Run watershed is roughly 36% agricultural, 56% forested and the rest is other uses.

References

Rivers of Pennsylvania Tributaries of the Beaver River Rivers of Mercer County, Pennsylvania {{Pennsylvania-river-stub