| Pontypridd to Mountain Brook (Alabama) | 4,182.20 mi (6,730.60 km) |
| Pontypridd to Mountain Home (Arkansas) | 4,269.20 mi (6,870.61 km) |
| Pontypridd to Mountain Home (Idaho) | 4,746.02 mi (7,637.98 km) |
| Pontypridd to Mountain House (California) | 5,226.49 mi (8,411.22 km) |
| Pontypridd to Mountain Park (Georgia) | 4,057.86 mi (6,530.50 km) |
| Pontypridd to Mountain Top (Pennsylvania) | 3,387.23 mi (5,451.22 km) |
| Pontypridd to Mountain View (California) | 5,263.94 mi (8,471.49 km) |
| Pontypridd to Mountlake Terrace (Washington) | 4,682.04 mi (7,535.01 km) |
| Pontypridd to Mukilteo (Washington) | 4,675.35 mi (7,524.25 km) |
| Pontypridd to Muncie (Indiana) | 3,810.47 mi (6,132.36 km) |
| Pontypridd to Mundelein (Illinois) | 3,818.12 mi (6,144.66 km) |
| Pontypridd to Munhall (Pennsylvania) | 3,581.92 mi (5,764.54 km) |
| Pontypridd to Munster (Indiana) | 3,831.50 mi (6,166.20 km) |
| Pontypridd to Murfreesboro (Tennessee) | 4,054.81 mi (6,525.58 km) |
| Pontypridd to Murphy (Texas) | 4,600.69 mi (7,404.10 km) |
