| Shirley Run | |
| Name Other: | Tributary to Thompson Creek |
| Map Size: | 300 |
| Pushpin Map: | USA Pennsylvania#USA |
| Pushpin Map Size: | 300 |
| Pushpin Map Caption: | Location of Shirley Run mouth |
| Pushpin Map Alt: | Map of Shirley Run mouth location |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States |
| Subdivision Type2: | State |
| Subdivision Name2: | Pennsylvania |
| Subdivision Type3: | County |
| Subdivision Name3: | Crawford Warren |
| Length: | 5.9miles[1] |
| Discharge1 Location: | Thompson Creek |
| Discharge1 Avg: | 22.54cuft/s at mouth with Thompson Creek[2] |
| Source1: | Three Bridge Run divide |
| Source1 Location: | about 2 miles northeast of Vrooman, Pennsylvania at "Blue Swamp" |
| Source1 Coordinates: | 41.7453°N -79.6103°W[3] |
| Source1 Elevation: | 1592feet[4] |
| Mouth: | Thompson Creek |
| Mouth Location: | Shelmandine Springs, Pennsylvania |
| Mouth Coordinates: | 41.6808°N -79.6678°W |
| Mouth Elevation: | 1360feet[5] |
| Progression: | south-southwest |
| River System: | Allegheny River |
| Tributaries Left: | unnamed tributaries |
| Tributaries Right: | Dolly Run |
| Bridges: | Harrison Road, Mageetown Road, Cloverdale Road, PA 89, Thompson Run Road |
Shirley Run is a 5.9miles long 3rd order tributary to Thompson Creek in Crawford County, Pennsylvania.
Shirley Run rises about 2 miles northeast of Vrooman, Pennsylvania, in Blue Swamp at the Warren County line and then flows south-southwest to join Thompson Creek at Shelmandine Springs.[5]
Shirley Run drains of area, receives about 45.6 in/year of precipitation, has a wetness index of 450.87, and is about 52% forested.[2]