| Gourock to Columbia (Illinois) | 3,910.56 mi (6,293.44 km) |
| Gourock to Columbia (Maryland) | 3,378.19 mi (5,436.67 km) |
| Gourock to Columbia (Missouri) | 3,961.24 mi (6,375.00 km) |
| Gourock to Columbia (Pennsylvania) | 3,323.84 mi (5,349.20 km) |
| Gourock to Columbia (South Carolina) | 3,791.55 mi (6,101.90 km) |
| Gourock to Columbia (Tennessee) | 3,940.69 mi (6,341.93 km) |
| Gourock to Columbia Heights (Minnesota) | 3,684.61 mi (5,929.81 km) |
| Gourock to Columbine (Colorado) | 4,365.11 mi (7,024.96 km) |
| Gourock to Columbus (Georgia) | 4,021.86 mi (6,472.56 km) |
| Gourock to Columbus (Indiana) | 3,715.77 mi (5,979.95 km) |
| Gourock to Columbus (Mississippi) | 4,101.89 mi (6,601.35 km) |
| Gourock to Columbus (Nebraska) | 4,008.17 mi (6,450.53 km) |
| Gourock to Columbus (Ohio) | 3,568.96 mi (5,743.68 km) |
| Gourock to Commack (New York) | 3,163.45 mi (5,091.07 km) |
| Gourock to Commerce (California) | 5,097.24 mi (8,203.21 km) |
