| Townley Run | |
| Name Other: | Tributary to West Branch French Creek |
| Map Size: | 300 |
| Pushpin Map: | Pennsylvania#USA |
| Pushpin Map Size: | 300 |
| Pushpin Map Caption: | Location of Townley Run mouth |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States |
| Subdivision Type2: | State |
| Subdivision Name2: | Pennsylvania |
| Subdivision Type3: | County |
| Subdivision Name3: | Erie |
| Subdivision Type4: | Townships |
| Subdivision Name4: | Venango Greenfield |
| Length: | 3.68miles[1] |
| Discharge1 Location: | West Branch French Creek |
| Discharge1 Avg: | 9.36cuft/s at mouth with West Branch French Creek[2] |
| Source1: | divide between Townley Run and Sevenmile Creek |
| Source1 Location: | just east of Greenfield Church |
| Source1 Coordinates: | 42.1331°N -79.8561°W[3] |
| Source1 Elevation: | 1450feet[4] |
| Mouth: | West Branch French Creek |
| Mouth Location: | about 2 miles southwest of Little Hope, Pennsylvania |
| Mouth Coordinates: | 42.0842°N -79.8653°W |
| Mouth Elevation: | 1312feet |
| Progression: | West Branch French Creek → French Creek → Allegheny River → Ohio River → Mississippi River → Gulf of Mexico |
| River System: | Allegheny River |
| Tributaries Left: | unnamed tributaries |
| Tributaries Right: | unnamed tributaries |
| Bridges: | Station Road, Williams Road, Wildman Road, and New Road |
Townley Run is a 3.68miles long tributary to West Branch French Creek that is classed as a 1st order stream on the EPA waters geoviewer site.[1]
Townley Run rises in Greenfield Township of eastern Erie County, Pennsylvania and then flows southeast to meet West Branch French Creek southwest of Little Hope, Pennsylvania.
Townley Run drains of Erie Drift Plain (glacial geology). The watershed receives an average of 47.0 in/year of precipitation and has a wetness index of 484.45.[5] The watershed is about 53% forested.[2]