| Baker Run | |
| Name Other: | Windfall Run |
| Source1 Location: | Stone Mountain in Noxen Township, Wyoming County, Pennsylvania |
| Mouth Location: | Bowman Creek in Noxen Township, Wyoming County, Pennsylvania |
| Mouth Coordinates: | 41.401°N -76.1139°W |
| Progression: | Bowman Creek → Susquehanna River → Chesapeake Bay |
| Length: | 1.1miles |
| Source1 Elevation: | between 1580and |
| Mouth Elevation: | 1227feet |
| Basin Size: | 2.28sqmi |
| Tributaries Right: | Windfall Run |
Baker Run (also known as Windfall Run) is a tributary of Bowman Creek in Wyoming County, Pennsylvania, in the United States. It is approximately 1.1miles long and flows through Noxen Township. The watershed of the stream has an area of 2.28sqmi. The stream is not designated as an impaired waterbody. The surficial geology in its vicinity consists of alluvium, alluvial terrace, and Wisconsinan Till. Its watershed is designated as a High-Quality Coldwater Fishery and a Migratory Fishery.
Baker Run begins on Stone Mountain in Noxen Township. It flows south-southeast down the mountain for a few tenths of a mile before turning south and continuing to flow down the mountain. After a short distance, it enters a deep valley and receives Windfall Run, its only named tributary, from the right. The stream then turns southeast for a short distance before turning south for a short distance. It then heads in an east-northeasterly direction (although it makes several turns) for a few tenths of a mile before reaching its confluence with Bowman Creek.
Baker Run joins Bowman Creek 17.58miles upstream of its mouth.
Baker Run has one named tributary, which is a 1.7miles long stream known as Windfall Run. Windfall Run joins Baker Run 0.66miles upstream of its mouth and drains an area of 1.68sqmi.
Baker Run is not designated as an impaired waterbody.
The elevation near the mouth of Baker Run is 1227feet above sea level. The elevation near the source of Baker Run is between 1580and above sea level.
The surficial geology in the vicinity of the lower reaches of Baker Run consists of alluvium, which contains stratified sand, silt, and gravel, and alluvial terrace. Further upstream, in the middle and upper reaches, there is a till known as Wisconsinan Till, which is underlain by glacial lake clays in the vicinity of the stream's middle reaches.
The watershed of Baker Run has an area of 2.28sqmi. The mouth of the stream is in the United States Geological Survey quadrangle of Nxoen. However, its source is in the quadrangle of Dutch Mountain.
Baker Run was entered into the Geographic Names Information System on August 2, 1979. Its identifier in the Geographic Names Information System is 1198348. The stream is also known as Windfall Run. This variant name appears in a 1946 United States Geological Survey map.
The drainage basin of Baker 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.