Wallace Run (Beaver River tributary)
| Wallace Run Tributary to Beaver River  | |
|---|---|
| Location | |
| Country | United States of America | 
| State | Pennsylvania | 
| County | Beaver | 
| Physical characteristics | |
| Source | divide between Wallace Run and North Fork Little Beaver Creek | 
| • location | about 2 miles southeast of Darlington, Pennsylvania | 
| • coordinates | 40°48′19″N 080°23′05″W / 40.80528°N 80.38472°W | 
| • elevation | 1,150 ft (350 m) | 
| Mouth | Beaver River | 
 • location  | Morado, Pennsylvania | 
 • coordinates  | 40°47′25″N 080°19′47″W / 40.79028°N 80.32972°W | 
 • elevation  | 730 ft (220 m) | 
| Length | 3.45 mi (5.55 km) | 
| Basin size | 4.70 square miles (12.2 km2) | 
| Discharge | |
| • average | 4.99 cu ft/s (0.141 m3/s) at mouth with Beaver River | 
| Basin features | |
| Progression | Beaver River → Ohio River → Mississippi River → Gulf of Mexico | 
| River system | Beaver River | 
| Tributaries | |
| • left | unnamed tributaries | 
| • right | unnamed tributaries | 
Wallace Run is a tributary of the Beaver River in western Pennsylvania. The stream rises in north-central Beaver County then flows east entering the Beaver River at Morado, Pennsylvania. The watershed is roughly 23% agricultural, 48% forested and the rest is other uses.