| Gourock to Black Forest (Colorado) | 4,380.76 mi (7,050.16 km) |
| Gourock to Blackfoot (Idaho) | 4,396.19 mi (7,074.98 km) |
| Gourock to Blackhawk (California) | 4,984.70 mi (8,022.09 km) |
| Gourock to Blacksburg (Virginia) | 3,610.78 mi (5,810.99 km) |
| Gourock to Blackwells Mills (New Jersey) | 3,230.77 mi (5,199.42 km) |
| Gourock to Blaine (Minnesota) | 3,677.28 mi (5,918.00 km) |
| Gourock to Bloomingdale (Florida) | 4,168.33 mi (6,708.27 km) |
| Gourock to Bloomingdale (Illinois) | 3,657.69 mi (5,886.49 km) |
| Gourock to Bloomington (California) | 5,070.42 mi (8,160.06 km) |
| Gourock to Bloomington (Illinois) | 3,762.97 mi (6,055.91 km) |
| Gourock to Bloomington (Indiana) | 3,740.33 mi (6,019.49 km) |
| Gourock to Bloomington (Minnesota) | 3,697.72 mi (5,950.91 km) |
| Gourock to Bloomsburg (Pennsylvania) | 3,275.83 mi (5,271.94 km) |
| Gourock to Blue Ash (Ohio) | 3,657.29 mi (5,885.85 km) |
| Gourock to Blue Island (Illinois) | 3,657.52 mi (5,886.20 km) |
