Crooked Run is a tributary of Catawissa Creek in Schuylkill County, Pennsylvania, in the United States.

The stream is considered to be a High-Quality Coldwater Fishery and Class A Wild Trout Waters.

[1] Crooked Run joins Catawissa Creek 20.20 miles (32.51 km) upstream of its mouth.

[3] The upper reaches of Crooked Run are considered by the Pennsylvania Fish and Boat Commission to be impaired for aquatic life by atmospheric deposition due to pH.

An alkalinity concentration of 16 milligrams per liter has been observed using methyl orange 0.81 miles (1.30 km) upstream of the stream's mouth.

[1] The upper reaches of Crooked Run are on rock of the Pocono Formation, which dates to the Mississippian Period.

[3] Crooked Run is in the United States Geological Survey quadrangles of Shumans and Nuremberg.

[4] Crooked Run is considered by the Pennsylvania Department of Environmental Protection to be a High-Quality Coldwater Fishery.

[3] It is considered by the Pennsylvania Fish and Boat Commission to be Class A Wild Trout Waters between its headwaters and its mouth.