| Dark Run | |
|---|---|
 Dark Run looking upstream near Ringtown | |
| Physical characteristics | |
| Source | |
| • location | Union Township, Schuylkill County, Pennsylvania near Pattersonville |
| • elevation | 1,160 to 1,180 feet (350 to 360 m) |
| Mouth | |
• location | Catawissa Creek in Union Township, Schuylkill County, Pennsylvania |
• coordinates | 40°52′56″N 76°12′23″W / 40.88217°N 76.20651°W |
• elevation | 843 ft (257 m) |
| Length | 4.3 mi (6.9 km) |
| Basin size | 4.55 sq mi (11.8 km2) |
| Basin features | |
| Progression | Catawissa Creek → Susquehanna River → Chesapeake Bay |
| Tributaries | |
| • left | "Trib 27588 to Dark Run", "Trib 27587 to Dark Run", "Trib 27586 to Dark Run" |
| • right | "Trib 27590 to Dark Run", "Trib 27589 to Dark Run" |
Dark Run is a tributary of Catawissa Creek in Schuylkill County, Pennsylvania, in the United States. It is approximately 4.3 miles (6.9 km) long and flows through Union Township.[1] The watershed of the stream has an area of 4.55 square miles (11.8 km2). The stream is considered to be a High-Quality Coldwater Fishery and Class D Wild Trout Waters. Eight species of fish inhabit the stream. The main rock formations in the stream's watershed are the Mauch Chunk Formation and the main soil is the Leck Kill soil. The stream has several unnamed tributaries.
- ^ United States Geological Survey, The National Map Viewer, archived from the original on March 29, 2012, retrieved October 4, 2014