Furnace Run (Shamokin Creek)

Furnace Run
Mouth of the tunnel carrying Furnace Run
Etymology	iron furnace built by Henry Myers on the stream in 1825
Basin features
Main source	small lake in Coal Township, Northumberland County, Pennsylvania between 840 and 860 feet (256 and 262 m)
River mouth	Shamokin Creek in Shamokin, Northumberland County, Pennsylvania 745 ft (227 m) 40°47′21″N 76°33′47″W / 40.7892°N 76.5630°W / 40.7892; -76.5630Coordinates: 40°47′21″N 76°33′47″W / 40.7892°N 76.5630°W / 40.7892; -76.5630
Progression	Shamokin Creek
Basin size	1.61 sq mi (4.2 km2)
Physical characteristics
Length	1.0 mi (1.6 km)

Furnace Run is a tributary of Shamokin Creek in Northumberland County, Pennsylvania, in the United States. It is approximately 1.0 mile (1.6 km) long and flows through Coal Township and Shamokin. The watershed of the stream has an area of 1.61 square miles (4.2 km²). It is impaired by sedimentation and siltation from urban runoff and storm sewers, but is not impacted by mine drainage. Reaches of the stream have been entirely enclosed. Furnace Run is named after a furnace that was built in the area in 1825. The stream is designated as a Coldwater Fishery and a Migratory Fishery.

Furnace Run begins in a small lake in Coal Township, in the census-designated place of Fairview-Ferndale. It flows east-northeast for its entire length, almost immediately entering the census-designated place of Edgewood. Several tenths of a mile further downstream, the stream enters Shamokin and reaches its confluence with Shamokin Creek.

Furnace Run joins Shamokin Creek 21.54 miles (34.67 km) upstream of its mouth.

Furnace Run is designated as an impaired waterbody. The cause of the impairment is sedimentation and siltation. The source of the impairment is urban runoff and storm sewers. As of 2006, a total maximum daily load is needed. Discharges of raw sewage also have entered the stream. However, it is not seriously impacted by mine drainage; there are no acid mine drainage discharges in the watershed.