| Hell Run | |
| Name Other: | Tributary to Slippery Rock Creek |
| Map Size: | 300 |
| Pushpin Map: | USA Pennsylvania#USA |
| Pushpin Map Size: | 300 |
| Pushpin Map Caption: | Location of Hell Run mouth |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States |
| Subdivision Type2: | State |
| Subdivision Name2: | Pennsylvania |
| Subdivision Type3: | County |
| Subdivision Name3: | Lawrence |
| Subdivision Type4: | Townships |
| Subdivision Name4: | Slippery Rock Shenango |
| Length: | 4.5miles[1] |
| Discharge1 Location: | Slippery Rock Creek |
| Discharge1 Avg: | 7.24cuft/s at mouth with Slippery Rock Creek[2] |
| Source1: | divide between Slippery Rock Creek and Beaver River[3] |
| Source1 Location: | about 0.5 miles north of Energy, Pennsylvania |
| Source1 Coordinates: | 40.9339°N -80.2633°W[4] |
| Source1 Elevation: | 1220feet |
| Mouth: | Slippery Rock Creek |
| Mouth Location: | about 0.5 miles upstream of Harris Bridge on Slippery Rock Creek |
| Mouth Coordinates: | 40.9158°N -80.2153°W |
| Mouth Elevation: | 880feet |
| Progression: | Slippery Rock Creek → Connoquenessing Creek → Beaver River → Ohio River → Mississippi River → Gulf of Mexico |
| River System: | Beaver River |
| Tributaries Left: | unnamed tributaries |
| Tributaries Right: | unnamed tributaries |
| Bridges: | Center Church Road, Copper Road, Shaffer Road |
Hell Run is a 4.5miles long tributary to Slippery Rock Creek in Lawrence County, Pennsylvania. Hell Run flows most of its distance through McConnells Mill State Park and is the only stream in Lawrence County, Pennsylvania rated as an Exceptional Value (EV) stream.[5]
The name "Hell's Hollow" and Hell Run has been ascribed to the description of an early settler who stayed the night in the hollow and termed it Hell.[6]
The Hell Run watershed is mostly in agricultural use with some strip mines in the upper sections and is natural in the lower sections within McConnell's Mill State Park. Almost 60% of the watershed is forested.[7]
Jacob Shaffer (1809-1810) and Miller Kennedy (1808) were the earliest settlers in the area.[8] Iron smelting took place in the valley during the late 1800s and an old iron furnace is still present within the watershed.[9]
The Hell Run watershed has been designated as an Exceptional Value (EV) stream by the PA Fish and Boat Commission. Hell Run along with Slippery Rock Creek is listed on the Nationwide Inventory of Wild and Scenic Rivers.[10]