Beaver Run is a tributary of County Line Branch in Northumberland County and Montour County, in

Pennsylvania Pennsylvania, officially the Commonwealth of Pennsylvania, is a U.S. state, state spanning the Mid-Atlantic (United States), Mid-Atlantic, Northeastern United States, Northeastern, Appalachian, and Great Lakes region, Great Lakes regions o ...

, in the United States. It is approximately long and flows through Lewis Township in Northumberland County and Anthony Township in Montour County. The watershed of the stream mostly consists of agricultural land. The watershed lies over rock of the Onondaga and Old Port Formation, the Keyser and Tonoloway Formation, and the Hamilton Group. It lies over soil of the Chanango-Pope-Holly series, the Hagerstown-Edom-Washington series, and the Watson-Berks-Alvira series. The stream experiences siltation and organic enrichment. A. Joseph Armstrong described Beaver Run as "small and overgrown" in his book ''Trout Unlimited's Guide to Pennsylvania Limestone Streams''.

Course

Beaver Run begins in eastern Lewis Township, Northumberland County. It flows southeast for a short distance before turning southwest and then south. The stream then crosses

Pennsylvania Route 44 Pennsylvania Route 44 (PA 44) is a -long state highway in the U.S. state of Pennsylvania. The route, which is signed north-south, is designated from Interstate 80 in Pennsylvania, Interstate 80 (I-80) and Pennsylvania Route 42, PA 42 in Buckhor ...

and Pennsylvania Route 54 before crossing a

Conrail Conrail , formally the Consolidated Rail Corporation, was the primary Class I railroad in the Northeastern United States between 1976 and 1999. The trade name Conrail is a portmanteau based on the company's legal name. It continues to do busine ...

railroad and turning southeast. It flows in this direction for some distance before passing by the community of Schuyler and leaving Lewis Township. Upon leaving Lewis Township, Beaver Run enters Limestone Township, Montour County. Here it turns east for a short distance and then turns southeast. The stream then crosses a set of

railroad track Railway track ( and International Union of Railways, UIC terminology) or railroad track (), also known as permanent way () or "P way" ( and English in the Commonwealth of Nations#Indian subcontinent, Indian English), is the structure on a Ra ...

s and further downstream reaches its confluence with County Line Branch near the eastern border of Limestone Township.

Hydrology

Portions of Beaver Run and its tributaries are affected by

siltation Siltation is water pollution caused by particulate terrestrial clastic material, with a particle size dominated by silt or clay. It refers both to the increased concentration of suspended sediments and to the increased accumulation (temporary o ...

and organic enrichment due to

agriculture Agriculture encompasses crop and livestock production, aquaculture, and forestry for food and non-food products. Agriculture was a key factor in the rise of sedentary human civilization, whereby farming of domesticated species created ...

. The entirety of the stream and its tributaries are listed as "not attaining" in the 305B Stream Listings. The water of Beaver Run is relatively warm. Beaver Run has low levels of

dissolved oxygen Oxygen saturation (symbol SO2) is a relative measure of the concentration of oxygen that is dissolved or carried in a given medium as a proportion of the maximal concentration that can be dissolved in that medium at the given temperature. It can ...

Geography and geology

The watershed of Beaver Run is in the Appalachian Mountain section of the ridge and valley physiographic region. Most of Beaver Run and the area in its vicinity lies over rock of the Onondaga and Old Port Formation. However, the southern part of the watershed is on rock of the Keyser and Tonoloway Formation and the upper reaches of the watershed, including some of the northern tributaries, lies over Hamilton Group rock. The soils in a small area in the lower reaches of the watershed of Beaver Run are of the Chenango-Pope-Holly soil series. The stream's southern tributaries and the rest of the lower and middle reaches of the watershed are on soil of the Hagerstown-Edom-Washington series. The upper reaches of the watershed lie over the Watson-Berks-Alvira soil series.

Hydric soil Hydric soil is soil which is permanently or seasonally saturated by water, resulting in anaerobic conditions, as found in wetlands. Overview Most soils are aerobic. This is important because plant roots respire (that is, they consume oxygen ...

s also occur on the stream. Beaver Run is not influenced by

limestone Limestone is a type of carbonate rock, carbonate sedimentary rock which is the main source of the material Lime (material), lime. It is composed mostly of the minerals calcite and aragonite, which are different Polymorphism (materials science) ...

. The elevation of Beaver Run near its mouth is above sea level.

Watershed

Nearly all of the watershed of Beaver Run is agricultural land. However, there are some small patches of forested land. In addition to the townships that the stream flows through, the community of Turbotville is also in the watershed. There are of streams in the watershed of Beaver Run. The Beaver Run Bridge was built over Beaver Run in its lower reaches in 1915. It is a closed-spandrel arch bridge that is long. The bridge is open to traffic.

Biology

Beaver Run has been described as overgrown. The Montour County Natural Areas Inventory recommends planting

native Native may refer to: People * '' Jus sanguinis'', nationality by blood * '' Jus soli'', nationality by location of birth * Indigenous peoples, peoples with a set of specific rights based on their historical ties to a particular territory ** Nat ...

trees along the stream.

References