| Gourock to Cicero (Illinois) | 3,651.07 mi (5,875.83 km) |
| Gourock to Cimarron Hills (Colorado) | 4,392.51 mi (7,069.06 km) |
| Gourock to Cincinnati (Ohio) | 3,667.19 mi (5,901.77 km) |
| Gourock to Cinco Ranch (Texas) | 4,576.24 mi (7,364.74 km) |
| Gourock to Circleville (Ohio) | 3,585.84 mi (5,770.85 km) |
| Gourock to Citrus (California) | 5,082.19 mi (8,179.00 km) |
| Gourock to Citrus Heights (California) | 4,915.38 mi (7,910.55 km) |
| Gourock to Citrus Park (Florida) | 4,169.41 mi (6,710.02 km) |
| Gourock to Claiborne (Louisiana) | 4,293.83 mi (6,910.25 km) |
| Gourock to Claremont (California) | 5,076.27 mi (8,169.47 km) |
| Gourock to Claremont (New Hampshire) | 3,009.52 mi (4,843.36 km) |
| Gourock to Claremore (Oklahoma) | 4,216.24 mi (6,785.39 km) |
| Gourock to Clarksburg (Maryland) | 3,392.40 mi (5,459.54 km) |
| Gourock to Clarksburg (West Virginia) | 3,504.42 mi (5,639.81 km) |
| Gourock to Clarksdale (Mississippi) | 4,145.79 mi (6,672.01 km) |
