York Run

York Run is a tributary of Bowman Creek in Wyoming County, Pennsylvania, in the United States. It is approximately 2.3 mi long and flows through Noxen Township. The watershed of the creek has an area of 1.42 sqmi. The surficial geology in its vicinity consists of alluvium, Wisconsinan Till, alluvial fan, and Wisconsinan Ice-Contact Stratified Drift. The watershed of the stream is designated as a High-Quality Coldwater Fishery and a Migratory Fishery and the stream is Class A Wild Trout Waters.

Course
York Run begins near the edge of a plateau in Noxen Township. It flows east-northeast for a short distance as its valley becomes much deeper. The stream then turns east-southeast for several tenths of a mile before turning south-southeast. After several tenths of a mile, it reaches the border of the census-designated place of Noxen. It flows along the border of Noxen in a south-southeasterly direction for several tenths of a mile before reaching its confluence with Bowman Creek.

York Run joins Bowman Creek 14.00 mi upstream of its mouth.

Hydrology
York Run is not designated as an impaired waterbody. The concentration of alkalinity in York Run is 12 mg/L.

Mehoopany Wind Energy, LLC. once applied for and/or received a National Pollutant Discharge Elimination System to discharge stormwater into York Run during construction activities.

Geography and geology
The elevation near the mouth of York Run is 1014 ft above sea level. The elevation of the stream's source is between 2060 and 2080 ft above sea level.

The surficial geology near the mouth of York Run mainly consists of alluvium, alluvial fan, and Wisconsinan Ice-Contact Stratified Drift. Further upstream, the surficial geology consists of Wisconsinan Till and alluvium, but bedrock consisting of sandstone and shale is also in the area.

Watershed
The watershed of York Run has an area of 1.42 sqmi. The stream is entirely within the United States Geological Survey quadrangle of Noxen.

The entire length of York Run is on private land that is closed to access.

History
York Run was entered into the Geographic Names Information System on August 2, 1979. Its identifier in the Geographic Names Information System is 1199825.

Biology
The drainage basin of York Run is designated as a High-Quality Coldwater Fishery and a Migratory Fishery. Wild trout naturally reproduce in the stream from its headwaters downstream to its mouth. It is designated by the Pennsylvania Fish and Boat Commission as Class A Wild Trout Waters for brook trout from its headwaters downstream to its mouth.

In 2002, the lichen species Biatora longispora and Biatora printzenii, of the genus Biatora were observed in the vicinity of York Run.