| Grass Valley to Mitchell (South Dakota) | 1,227.16 mi (1,974.92 km) |
| Grass Valley to Mitchellville (Maryland) | 2,348.55 mi (3,779.62 km) |
| Grass Valley to Moberly (Missouri) | 1,523.14 mi (2,451.25 km) |
| Grass Valley to Mobile (Alabama) | 1,944.14 mi (3,128.79 km) |
| Grass Valley to Modesto (California) | 109.64 mi (176.44 km) |
| Grass Valley to Mokena (Illinois) | 1,742.61 mi (2,804.47 km) |
| Grass Valley to Moline (Illinois) | 1,608.25 mi (2,588.23 km) |
| Grass Valley to Moncks Corner (South Carolina) | 2,306.13 mi (3,711.36 km) |
| Grass Valley to Monfort Heights (Ohio) | 1,937.85 mi (3,118.67 km) |
| Grass Valley to Monmouth (Oregon) | 404.45 mi (650.89 km) |
| Grass Valley to Monroe (Georgia) | 2,091.84 mi (3,366.50 km) |
| Grass Valley to Monroe (Louisiana) | 1,679.02 mi (2,702.13 km) |
| Grass Valley to Monroe (Michigan) | 1,969.75 mi (3,170.01 km) |
| Grass Valley to Monroe (North Carolina) | 2,231.32 mi (3,590.96 km) |
| Grass Valley to Monroe (Ohio) | 1,946.79 mi (3,133.05 km) |
