Coupler Run
| Coupler Run Tributary to Montgomery Run  | |
|---|---|
| Location | |
| Country | United States | 
| State | Pennsylvania | 
| County | Clearfield | 
| Physical characteristics | |
| Source | Bear Run divide | 
| • location | about 5 miles east-southeast of Rockton, Pennsylvania | 
| • coordinates | 41°04′07″N 078°35′03″W / 41.06861°N 78.58417°W | 
| • elevation | 2,250 ft (690 m) | 
| Mouth | |
 • location  | about 3 miles northeast of Rockton, Pennsylvania | 
 • coordinates  | 41°05′49″N 078°36′28″W / 41.09694°N 78.60778°W | 
 • elevation  | 1,741 ft (531 m) | 
| Length | 3.04 mi (4.89 km) | 
| Basin size | 4.53 square miles (11.7 km2) | 
| Discharge | |
| • location | Montgomery Run | 
| • average | 8.71 cu ft/s (0.247 m3/s) at mouth with Montgomery Run | 
| Basin features | |
| Progression | Montgomery Run → Anderson Creek → West Branch Susquehanna River → Susquehanna River → Chesapeake Bay → Atlantic Ocean | 
| River system | Susquehanna River | 
| Tributaries | |
| • left | unnamed tributaries | 
| • right | unnamed tributaries | 
| Bridges | US 322 | 
Coupler Run is a 3.04 mi (4.89 km) long 2nd order tributary to Montgomery Run in Clearfield County, Pennsylvania. This is the only stream of this name in the United States.