Black Run (Spruce Run tributary)

Black Run
Blacks Run
Black Run in its lower reaches
Physical characteristics
Source 
  locationBuffalo Mountain in West Buffalo Township, Union County, Pennsylvania
  elevationbetween 1,520 and 1,540 feet (460 and 470 m)
Mouth 
  location
Spruce Run in Buffalo Township, Union County, Pennsylvania
  coordinates
40°59′09″N 76°59′03″W / 40.9858°N 76.9842°W / 40.9858; -76.9842
  elevation
502 ft (153 m)
Length4.7 mi (7.6 km)
Basin size4.72 sq mi (12.2 km2)
Basin features
ProgressionSpruce Run → Buffalo CreekWest Branch Susquehanna RiverSusquehanna RiverChesapeake Bay
Tributaries 
  lefttwo unnamed tributaries

Black Run (also known as Black's Run) is a tributary of Spruce Run in Union County, Pennsylvania, in the United States. It is approximately 4.7 miles (7.6 km) long and flows through West Buffalo Township and Buffalo Township. The watershed of the stream has an area of 4.72 square miles (12.2 km2). The stream has two unnamed tributaries and is not designated as an impaired waterbody. Its watershed is mostly forested, but there is some agricultural land. A few bridges have been constructed across the stream.