Beaver Run (Buffalo Creek tributary)

Beaver Run
Beaver Run looking upstream from Pennsylvania Route 192
Etymologya large beaver dam historically located near its mouth
Physical characteristics
Source 
  locationnear the intersection of Pheasant Ridge Road and Dreisbach Church Road in Buffalo Township, Union County, Pennsylvania
  elevationbetween 540 and 560 feet (160 and 170 m)
Mouth 
  location
Buffalo Creek in Buffalo Township, Union County, Pennsylvania
  coordinates
40°57′59″N 76°59′05″W / 40.96631°N 76.98484°W / 40.96631; -76.98484
  elevation
492 ft (150 m)
Length3.7 mi (6.0 km)
Basin size4.78 sq mi (12.4 km2)
Basin features
ProgressionBuffalo Creek → West Branch Susquehanna RiverSusquehanna RiverChesapeake Bay

Beaver Run is a tributary of Buffalo Creek in Union County, Pennsylvania, in the United States. It is approximately 3.7 miles (6.0 km) long and flows through Buffalo Township. The watershed of the stream has an area of 4.78 square miles (12.4 km2). It is designated as an impaired stream due to siltation from agricultural activity. A significant majority of the stream's watershed is on agricultural land and only a tiny minority is on forested land.

Beaver Run was named sometime before 1769. A bridge was constructed over the stream in Vicksburg in 1940. The watershed of Beaver Run is designated as a coldwater fishery and a migratory fishery. The stream has a low level of diversity amongst pollution-sensitive macroinvertebrates. However, its pathogen load is several quadrillion organisms per month.