Big 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 ...

Little Muncy Creek Little Muncy Creek is the major tributary of Muncy Creek in Lycoming and Sullivan Counties, Pennsylvania, United States. Via Muncy Creek and the West Branch Susquehanna River, it is part of the Susquehanna River drainage basin and waters from it ...

Lycoming County, Pennsylvania Lycoming County is a county in the Commonwealth of Pennsylvania. As of the 2020 census, the population was 114,188. Its county seat is Williamsport. Lycoming County comprises the Williamsport metropolitan statistical area. About northwest ...

, in the United States. It is approximately long and flows through Penn Township and Franklin Township. The watershed of the stream has an area of . The stream is impaired by a high total concentration of

nitrogen Nitrogen is the chemical element with the symbol N and atomic number 7. Nitrogen is a nonmetal and the lightest member of group 15 of the periodic table, often called the pnictogens. It is a common element in the universe, estimated at se ...

. A number of bridges have been constructed across it.

Course

Big Run begins in a valley in Penn Township. It flows southwest for a few tenths of a mile before turning west for a few tenths of a mile. The stream then turns south-southwest. After several tenths of a mile, 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 ...

and turns south-southwest for a few miles. In this reach, it receives one 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 one from the right before entering Franklin Township, where it receives three more unnamed tributaries from the left. The stream's valley then widens before the stream reaches the end of the valley, crosses

Pennsylvania Route 118 Pennsylvania Route 118 (PA 118) is a state route located in northeastern Pennsylvania. The western terminus of the route is at PA 405 in Hughesville. The eastern terminus is at PA 415 in Dallas. The road is known briefly as East Wa ...

, and reaches its confluence with Little Muncy Creek. Big Run joins Little Muncy Creek upstream of its mouth.

Hydrology

Big Run is classified as impaired due to high total

levels. It is a

United States Department of Agriculture The United States Department of Agriculture (USDA) is the United States federal executive departments, federal executive department responsible for developing and executing federal laws related to farming, forestry, rural economic development, ...

Natural Resources Conservation Service Natural Resources Conservation Service (NRCS), formerly known as the Soil Conservation Service (SCS), is an agency of the United States Department of Agriculture (USDA) that provides technical assistance to farmers and other private landowners an ...

priority watershed, as well as a

United States Environmental Protection Agency The Environmental Protection Agency (EPA) is an independent executive agency of the United States federal government tasked with environmental protection matters. President Richard Nixon proposed the establishment of EPA on July 9, 1970; it be ...

priority agricultural steam.

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 Big 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. The

surficial geology Superficial deposits (or surficial deposits) refer to geological deposits typically of Quaternary age (less than 2.6 million years old). These geologically recent unconsolidated sediments may include stream channel and floodplain deposits, beach ...

along the valley floor in parts of the middle or upper reaches of Big Run mostly consists of

alluvium Alluvium (from Latin ''alluvius'', from ''alluere'' 'to wash against') is loose clay, silt, sand, or gravel that has been deposited by running water in a stream bed, on a floodplain, in an alluvial fan or beach, or in similar settings. Alluv ...

, which contains stratified

sand Sand is a granular material composed of finely divided mineral particles. Sand has various compositions but is defined by its grain size. Sand grains are smaller than gravel and coarser than silt. Sand can also refer to a textural class of s ...

and

gravel Gravel is a loose aggregation of rock fragments. Gravel occurs naturally throughout the world as a result of sedimentary and erosive geologic processes; it is also produced in large quantities commercially as crushed stone. Gravel is classifi ...

. However, there are patches of Wisconsinan

Till image:Geschiebemergel.JPG, Closeup of glacial till. Note that the larger grains (pebbles and gravel) in the till are completely surrounded by the matrix of finer material (silt and sand), and this characteristic, known as ''matrix support'', is d ...

, Wisconsinan and Illinoian Lag, Illinoian Till, and Illinoian Lag nearby, and the valley sides have surficial geology of

bedrock In geology, bedrock is solid Rock (geology), rock that lies under loose material (regolith) within the crust (geology), crust of Earth or another terrestrial planet. Definition Bedrock is the solid rock that underlies looser surface mater ...

consisting of

sandstone Sandstone is a clastic sedimentary rock composed mainly of sand-sized (0.0625 to 2 mm) silicate grains. Sandstones comprise about 20–25% of all sedimentary rocks. Most sandstone is composed of quartz or feldspar (both silicates) ...

and

shale Shale is a fine-grained, clastic sedimentary rock formed from mud that is a mix of flakes of clay minerals (hydrous aluminium phyllosilicates, e.g. kaolin, Al2 Si2 O5( OH)4) and tiny fragments (silt-sized particles) of other minerals, especial ...

in some reaches. During the

Wisconsinan Glaciation The Wisconsin Glacial Episode, also called the Wisconsin glaciation, was the most recent glacial period of the North American ice sheet complex. This advance included the Cordilleran Ice Sheet, which nucleated in the northern North American Cor ...

, the ice profile in the valley of Big Run was in the last before the terminus. The maximum extent of the ice during the Wisconsinan Glaciation crossed Big Run's course.

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 Big Run has an area of . The mouth of the stream is in 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 Lairdsville. However, its source is in the quadrangle of Sonestown. The stream also passes through the quadrangle of Picture Rocks. The mouth of the stream is located within of Lairdsville. The

hydrologic unit code A hydrological code or hydrologic unit code is a sequence of numbers or letters (a ''geocode'') that identify a hydrological unit or feature, such as a river, river reach, lake, or area like a drainage basin (also called watershed in North Americ ...

of the watershed of Big Run is 020502060702. A pipeline crosses the stream at one point.

History

Big 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 1192138. A concrete stringer/multi-beam or girder bridge carrying State Route 2015 over Big Run was built north of Lairdsville in 1929 and is long. A concrete

tee beam A T-beam (or tee beam), used in construction, is a load-bearing structure of reinforced concrete, wood or metal, with a -shaped cross section. The top of the -shaped cross section serves as a flange or compression member in resisting compressiv ...

bridge carrying a township road and

over the stream was built in Lairdsville in 1937 and is long. In January 2011, Chief Gathering LLC., a subsidiary of Chief Oil & Gas, received a $34,000 fine from the

Pennsylvania Department of Environmental Protection The Pennsylvania Department of Environmental Protection (DEP) is the agency in the U.S. state of Pennsylvania responsible for protecting and preserving the land, air, water, and public health through enforcement of the state's environmental laws. ...

for discharging approximately of hydrostatic testing water into the watershed of Big Run during a pipeline testing project in August 2010 in Penn Township.

References