| Pontneddfechan to Mountain Brook (Alabama) | 4,168.93 mi (6,709.25 km) |
| Pontneddfechan to Mountain Home (Arkansas) | 4,255.28 mi (6,848.22 km) |
| Pontneddfechan to Mountain Home (Idaho) | 4,731.09 mi (7,613.95 km) |
| Pontneddfechan to Mountain House (California) | 5,211.55 mi (8,387.18 km) |
| Pontneddfechan to Mountain Park (Georgia) | 4,044.78 mi (6,509.44 km) |
| Pontneddfechan to Mountain Top (Pennsylvania) | 3,373.97 mi (5,429.88 km) |
| Pontneddfechan to Mountain View (California) | 5,249.00 mi (8,447.45 km) |
| Pontneddfechan to Mountlake Terrace (Washington) | 4,667.16 mi (7,511.07 km) |
| Pontneddfechan to Mukilteo (Washington) | 4,660.48 mi (7,500.31 km) |
| Pontneddfechan to Muncie (Indiana) | 3,796.67 mi (6,110.15 km) |
| Pontneddfechan to Mundelein (Illinois) | 3,803.99 mi (6,121.93 km) |
| Pontneddfechan to Munhall (Pennsylvania) | 3,568.46 mi (5,742.87 km) |
| Pontneddfechan to Munster (Indiana) | 3,817.46 mi (6,143.60 km) |
| Pontneddfechan to Murfreesboro (Tennessee) | 4,041.34 mi (6,503.91 km) |
| Pontneddfechan to Murphy (Texas) | 4,586.76 mi (7,381.67 km) |
