| Risca to Mountain Brook (Alabama) | 4,192.32 mi (6,746.88 km) |
| Risca to Mountain Home (Arkansas) | 4,278.87 mi (6,886.17 km) |
| Risca to Mountain Home (Idaho) | 4,753.53 mi (7,650.06 km) |
| Risca to Mountain House (California) | 5,233.93 mi (8,423.20 km) |
| Risca to Mountain Park (Georgia) | 4,068.07 mi (6,546.93 km) |
| Risca to Mountain Top (Pennsylvania) | 3,397.35 mi (5,467.51 km) |
| Risca to Mountain View (California) | 5,271.36 mi (8,483.44 km) |
| Risca to Mountlake Terrace (Washington) | 4,688.54 mi (7,545.48 km) |
| Risca to Mukilteo (Washington) | 4,681.85 mi (7,534.71 km) |
| Risca to Muncie (Indiana) | 3,820.23 mi (6,148.07 km) |
| Risca to Mundelein (Illinois) | 3,827.58 mi (6,159.90 km) |
| Risca to Munhall (Pennsylvania) | 3,591.92 mi (5,780.63 km) |
| Risca to Munster (Indiana) | 3,841.05 mi (6,181.58 km) |
| Risca to Murfreesboro (Tennessee) | 4,064.81 mi (6,541.68 km) |
| Risca to Murphy (Texas) | 4,610.34 mi (7,419.63 km) |
