| Gourock to Carson (California) | 5,109.70 mi (8,223.28 km) |
| Gourock to Carson City (Nevada) | 4,844.47 mi (7,796.41 km) |
| Gourock to Carteret (New Jersey) | 3,211.63 mi (5,168.61 km) |
| Gourock to Cartersville (Georgia) | 3,932.45 mi (6,328.67 km) |
| Gourock to Carthage (Missouri) | 4,126.17 mi (6,640.43 km) |
| Gourock to Cary (Illinois) | 3,650.38 mi (5,874.71 km) |
| Gourock to Cary (North Carolina) | 3,622.96 mi (5,830.60 km) |
| Gourock to Casa de Oro-Mount Helix (California) | 5,132.40 mi (8,259.81 km) |
| Gourock to Casa Grande (Arizona) | 4,957.47 mi (7,978.28 km) |
| Gourock to Casas Adobes (Arizona) | 4,964.98 mi (7,990.36 km) |
| Gourock to Cascades (Virginia) | 3,405.72 mi (5,480.98 km) |
| Gourock to Casper (Wyoming) | 4,229.41 mi (6,806.58 km) |
| Gourock to Casselberry (Florida) | 4,090.18 mi (6,582.51 km) |
| Gourock to Castaic (California) | 5,083.54 mi (8,181.17 km) |
| Gourock to Castle Pines (Colorado) | 4,365.38 mi (7,025.40 km) |
