| Boulder to Gages Lake (Illinois) | 910.57 mi (1,465.43 km) |
| Boulder to Gahanna (Ohio) | 1,181.43 mi (1,901.32 km) |
| Boulder to Gainesville (Florida) | 1,476.15 mi (2,375.63 km) |
| Boulder to Gainesville (Georgia) | 1,240.77 mi (1,996.82 km) |
| Boulder to Gainesville (Texas) | 628.36 mi (1,011.24 km) |
| Boulder to Gainesville (Virginia) | 1,470.89 mi (2,367.17 km) |
| Boulder to Gaithersburg (Maryland) | 1,488.27 mi (2,395.14 km) |
| Boulder to Galena Park (Texas) | 908.03 mi (1,461.33 km) |
| Boulder to Galesburg (Illinois) | 783.38 mi (1,260.73 km) |
| Boulder to Galion (Ohio) | 1,180.60 mi (1,899.99 km) |
| Boulder to Gallatin (Tennessee) | 1,048.30 mi (1,687.08 km) |
| Boulder to Gallup (New Mexico) | 365.03 mi (587.45 km) |
| Boulder to Galt (California) | 867.20 mi (1,395.63 km) |
| Boulder to Galveston (Texas) | 947.91 mi (1,525.51 km) |
| Boulder to Gantt (South Carolina) | 1,301.22 mi (2,094.11 km) |
