| Slough to Clermont (Florida) | 4,334.37 mi (6,975.50 km) |
| Slough to Cleveland (Mississippi) | 4,443.36 mi (7,150.90 km) |
| Slough to Cleveland (Ohio) | 3,717.26 mi (5,982.36 km) |
| Slough to Cleveland (Tennessee) | 4,138.06 mi (6,659.57 km) |
| Slough to Cleveland Heights (Ohio) | 3,711.09 mi (5,972.43 km) |
| Slough to Cliffside Park (New Jersey) | 3,436.89 mi (5,531.14 km) |
| Slough to Clifton (Colorado) | 4,823.57 mi (7,762.79 km) |
| Slough to Clifton (New Jersey) | 3,442.06 mi (5,539.46 km) |
| Slough to Clinton (Iowa) | 4,030.59 mi (6,486.61 km) |
| Slough to Clinton (Maryland) | 3,647.52 mi (5,870.12 km) |
| Slough to Clinton (Mississippi) | 4,497.54 mi (7,238.10 km) |
| Slough to Clinton (Utah) | 4,831.08 mi (7,774.88 km) |
| Slough to Clive (Iowa) | 4,174.11 mi (6,717.58 km) |
| Slough to Cloquet (Minnesota) | 3,886.09 mi (6,254.05 km) |
| Slough to Cloverleaf (Texas) | 4,821.15 mi (7,758.89 km) |
