Limestone Run (Union County, Pennsylvania)

Limestone Run
Limestone Run, looking upstream, Lewisburg, Pennsylvania
Location
CountryUnited States
CountyUnion County
TownsLewisburg
Physical characteristics
MouthWest Branch Susquehanna River
  location
Lewisburg, Pennsylvania
  coordinates
40°57′46″N 76°53′40″W / 40.96291°N 76.89447°W / 40.96291; -76.89447
Length5.8 mi (9.3 km)

Limestone Run (also known as Bull Run) is a 5.8 miles (9.3 km) tributary of the West Branch Susquehanna River in Union County, Pennsylvania, which flows through East Buffalo Township, Buffalo Township and Lewisburg. Ludwig Derr once constructed a mill on the run, so one of its six tributaries is called Miller Run.

It is named Bull Run in a section of downtown Lewisburg, including as it passes beside Hufnagle Park.