| River Ridge to Mexborough | 4,541.71 mi (7,309.18 km) |
| River Ridge to Mickleover | 4,544.04 mi (7,312.93 km) |
| River Ridge to Middlesbrough | 4,520.61 mi (7,275.22 km) |
| River Ridge to Middleton | 4,505.19 mi (7,250.40 km) |
| River Ridge to Middlewich | 4,502.65 mi (7,246.32 km) |
| River Ridge to Midsomer Norton | 4,541.53 mi (7,308.88 km) |
| River Ridge to Mildenhall | 4,638.29 mi (7,464.61 km) |
| River Ridge to Milford Haven | 4,427.52 mi (7,125.41 km) |
| River Ridge to Mill Hill | 4,625.67 mi (7,444.29 km) |
| River Ridge to Milngavie | 4,377.85 mi (7,045.46 km) |
| River Ridge to Milnrow | 4,507.01 mi (7,253.33 km) |
| River Ridge to Milton | 4,517.51 mi (7,270.24 km) |
| River Ridge to Milton Keynes | 4,594.68 mi (7,394.42 km) |
| River Ridge to Minehead | 4,502.41 mi (7,245.93 km) |
| River Ridge to Minster | 4,672.34 mi (7,519.40 km) |
