| Thornbury to Carson (California) | 5,370.70 mi (8,643.30 km) |
| Thornbury to Carson City (Nevada) | 5,117.34 mi (8,235.57 km) |
| Thornbury to Carteret (New Jersey) | 3,375.50 mi (5,432.34 km) |
| Thornbury to Cartersville (Georgia) | 4,103.33 mi (6,603.68 km) |
| Thornbury to Carthage (Missouri) | 4,335.88 mi (6,977.92 km) |
| Thornbury to Cary (Illinois) | 3,861.00 mi (6,213.69 km) |
| Thornbury to Cary (North Carolina) | 3,780.40 mi (6,083.97 km) |
| Thornbury to Casa de Oro-Mount Helix (California) | 5,388.60 mi (8,672.12 km) |
| Thornbury to Casa Grande (Arizona) | 5,201.61 mi (8,371.18 km) |
| Thornbury to Casas Adobes (Arizona) | 5,206.04 mi (8,378.32 km) |
| Thornbury to Cascades (Virginia) | 3,572.53 mi (5,749.43 km) |
| Thornbury to Casper (Wyoming) | 4,483.37 mi (7,215.28 km) |
| Thornbury to Casselberry (Florida) | 4,228.22 mi (6,804.66 km) |
| Thornbury to Castaic (California) | 5,346.46 mi (8,604.30 km) |
| Thornbury to Castle Pines (Colorado) | 4,608.08 mi (7,415.99 km) |
