| Barstow to Marshall (Minnesota) | 1,304.54 mi (2,099.45 km) |
| Barstow to Marshall (Missouri) | 1,344.16 mi (2,163.21 km) |
| Barstow to Marshall (Texas) | 1,311.62 mi (2,110.85 km) |
| Barstow to Marshalltown (Iowa) | 1,391.14 mi (2,238.82 km) |
| Barstow to Marshfield (Wisconsin) | 1,569.92 mi (2,526.54 km) |
| Barstow to Martha Lake (Washington) | 935.84 mi (1,506.09 km) |
| Barstow to Martin (Tennessee) | 1,581.65 mi (2,545.43 km) |
| Barstow to Martinez (California) | 355.21 mi (571.65 km) |
| Barstow to Martinez (Georgia) | 1,989.36 mi (3,201.57 km) |
| Barstow to Martinsburg (West Virginia) | 2,157.50 mi (3,472.16 km) |
| Barstow to Martinsville (Indiana) | 1,706.78 mi (2,746.80 km) |
| Barstow to Martinsville (New Jersey) | 2,331.43 mi (3,752.08 km) |
| Barstow to Martinsville (Virginia) | 2,075.14 mi (3,339.62 km) |
| Barstow to Maryland City (Maryland) | 2,222.00 mi (3,575.96 km) |
| Barstow to Maryland Heights (Missouri) | 1,488.72 mi (2,395.86 km) |
