Black Run is a

tributary A tributary, or affluent, is a stream or river that flows into a larger stream or main stem (or parent) river or a lake. A tributary does not flow directly into a sea or ocean. Tributaries and the main stem river drain the surrounding drainage ...

of the

West Branch Susquehanna River The West Branch Susquehanna River is one of the two principal branches, along with the North Branch, of the Susquehanna River in the Northeastern United States. The North Branch, which rises in upstate New York, is generally regarded as the exte ...

Lycoming County Lycoming County is a county in the Commonwealth of Pennsylvania. As of the 2020 census, the population was 114,188. Its county seat A county seat is an administrative center, seat of government, or capital city of a county or civil parish. ...

and Union County, in

Pennsylvania Pennsylvania (; ( Pennsylvania Dutch: )), officially the Commonwealth of Pennsylvania, is a state spanning the Mid-Atlantic, Northeastern, Appalachian, and Great Lakes regions of the United States. It borders Delaware to its southeast, ...

, in the United States. It is approximately long and flows through Brady Township in Lycoming County and Gregg Township in Union County. The watershed of the stream has an area of . The stream is not designated as an impaired waterbody. It is a relatively small stream with its mouth located near Montgomery. The stream's watershed is designated as a Warmwater Fishery and a Migratory Fishery.

Course

Black Run begins to the east of a pond in Brady Township, Lycoming County. It flows south-southeast for several tenths of a mile before exiting Brady Township and Lycoming County. Upon leaving Lycoming County, the stream enters Gregg Township, Union County and turns southeast for several tenths of a mile, passing through a pond, receiving an unnamed tributary from the

left Left may refer to: Music * ''Left'' (Hope of the States album), 2006 * ''Left'' (Monkey House album), 2016 * "Left", a song by Nickelback from the album ''Curb'', 1996 Direction * Left (direction), the relative direction opposite of right * L ...

, and passing through a

wetland A wetland is a distinct ecosystem that is flooded or saturated by water, either permanently (for years or decades) or seasonally (for weeks or months). Flooding results in oxygen-free (anoxic) processes prevailing, especially in the soils. The ...

. It then passes through another pond, where it receives an unnamed tributary from the

right Rights are law, legal, social, or ethics, ethical principles of Liberty, freedom or entitlement; that is, rights are the fundamental normative rules about what is allowed of people or owed to people according to some legal system, social convent ...

. The stream then turns east for several tenths of a mile before turning east-southeast for several tenths of a mile. In this reach, it receives an unnamed tributary from the left. The stream then turns northeast, crossing

US Route 15 U.S. Route 15 (US 15) is a -long United States highway, designated along South Carolina, North Carolina, Virginia, Maryland, Pennsylvania, and New York. The route is signed north–south, from U.S. Route 17 Alternate in Walterboro, South Car ...

, before turning east and receiving an unnamed tributary from the left. After a few tenths of a mile, it turns northeast for a few tenths of a mile, reentering Brady Township, Lycoming county. The stream then turns east-southeast for a few tenths of a mile before reaching its confluence with the West Branch Susquehanna River. Black Run joins the West Branch Susquehanna River upstream of its mouth.

Hydrology

Black Run is not designated as an impaired waterbody. The Lycoming County RMS Recycling Facility and the Lycoming County RMS Southside Stockpile once applied for a permit to discharge

stormwater Stormwater, also spelled storm water, is water that originates from precipitation (storm), including heavy rain and meltwater from hail and snow. Stormwater can soak into the soil ( infiltrate) and become groundwater, be stored on depressed la ...

into an unnamed tributary or tributaries of the stream. The

Federal Correctional Complex, Allenwood The Federal Correctional Complex, Allenwood (FCC Allenwood) is a United States federal prison complex for male inmates in Pennsylvania. It is operated by the Federal Bureau of Prisons, a division of the United States Department of Justice. The pri ...

has discharged effluent from its

wastewater treatment plant Wastewater treatment is a process used to remove contaminants from wastewater and convert it into an effluent that can be returned to the water cycle. Once returned to the water cycle, the effluent creates an acceptable impact on the environmen ...

into the stream.

Geography and geology

The elevation near the

mouth In animal anatomy, the mouth, also known as the oral cavity, or in Latin cavum oris, is the opening through which many animals take in food and issue vocal sounds. It is also the cavity lying at the upper end of the alimentary canal, bounded on ...

of Black Run is above

sea level Mean sea level (MSL, often shortened to sea level) is an average surface level of one or more among Earth's coastal bodies of water from which heights such as elevation may be measured. The global MSL is a type of vertical datuma standardised g ...

. The elevation of the stream's

source Source may refer to: Research * Historical document * Historical source * Source (intelligence) or sub source, typically a confidential provider of non open-source intelligence * Source (journalism), a person, publication, publishing institute o ...

is above sea level. Black Run was described as a "rather small and insignificant stream" in an 1899 report.

Glacial drift In geology, drift is a name for all sediment (clay, silt, sand, gravel, boulders) transported by a glacier and deposited directly by or from the ice, or by glacial meltwater. Drift is often subdivided into (unsorted and) unstratified drift (glaci ...

and

boulder In geology, a boulder (or rarely bowlder) is a rock fragment with size greater than in diameter. Smaller pieces are called cobbles and pebbles. While a boulder may be small enough to move or roll manually, others are extremely massive. In c ...

s of the

Catskill Formation The Devonian Catskill Formation or the Catskill Clastic wedge is a unit of mostly terrestrial sedimentary rock found in Pennsylvania and New York. Minor marine layers exist in this thick rock unit (up to ). It is equivalent to the Hampshire For ...

and the

Pocono Formation The Mississippian Pocono Formation is a mapped bedrock unit in Pennsylvania, Maryland, and West Virginia, in the United States. It is also known as the Pocono Group in Maryland and West Virginia, and the upper part of the Pocono Formation is somet ...

occur in the vicinity of Black Run.

Watershed

The

watershed Watershed is a hydrological term, which has been adopted in other fields in a more or less figurative sense. It may refer to: Hydrology * Drainage divide, the line that separates neighbouring drainage basins * Drainage basin, called a "watershe ...

of Black Run has an area of . The stream is entirely within the

United States Geological Survey The United States Geological Survey (USGS), formerly simply known as the Geological Survey, is a scientific agency of the United States government. The scientists of the USGS study the landscape of the United States, its natural resources, ...

quadrangle of Montoursville South. Its mouth is located near Montgomery. The stream is situated near the northern border of Gregg Township, Union County. The Allenwood Federal Prison Camp and the Lycoming County

Landfill A landfill site, also known as a tip, dump, rubbish dump, garbage dump, or dumping ground, is a site for the disposal of waste materials. Landfill is the oldest and most common form of waste disposal, although the systematic burial of the waste ...

are in the watershed of Black Run. In 1990, it was noted that there was a potential industrial site to the north of the stream.

History

Black Run was entered into the

Geographic Names Information System The Geographic Names Information System (GNIS) is a database of name and locative information about more than two million physical and cultural features throughout the United States and its territories, Antarctica, and the associated states of ...

on August 2, 1979. Its identifier in the Geographic Names Information System is 1169731. In the late 1800s, a

tannery Tanning may refer to: *Tanning (leather), treating animal skins to produce leather *Sun tanning, using the sun to darken pale skin **Indoor tanning, the use of artificial light in place of the sun **Sunless tanning, application of a stain or dye t ...

discharged waste into Black Run. In 1990, a wastewater treatment plant was proposed; it was planned to be located near the mouth of Black Run and to discharge per day into the West Branch Susquehanna River.

Biology

The drainage basin of Black Run is designated as a Warmwater Fishery and a Migratory Fishery.

References

{{authority control Rivers of Lycoming County, Pennsylvania Rivers of Union County, Pennsylvania Tributaries of the West Branch Susquehanna River Rivers of Pennsylvania