| Castle Rock to Manassas (Virginia) | 1,463.35 mi (2,355.03 km) |
| Castle Rock to Manassas Park (Virginia) | 1,465.23 mi (2,358.06 km) |
| Castle Rock to Manatí (Puerto Rico) | 2,704.95 mi (4,353.19 km) |
| Castle Rock to Manchester (Missouri) | 771.73 mi (1,241.98 km) |
| Castle Rock to Manchester (New Hampshire) | 1,743.44 mi (2,805.80 km) |
| Castle Rock to Manchester (Tennessee) | 1,063.02 mi (1,710.77 km) |
| Castle Rock to Manchester (Virginia) | 1,478.39 mi (2,379.24 km) |
| Castle Rock to Mandan (North Dakota) | 552.25 mi (888.76 km) |
| Castle Rock to Mandeville (Louisiana) | 1,040.31 mi (1,674.22 km) |
| Castle Rock to Mango (Florida) | 1,509.77 mi (2,429.74 km) |
| Castle Rock to Manhattan (Kansas) | 441.18 mi (710.01 km) |
| Castle Rock to Manhattan (New York) | 1,627.36 mi (2,618.98 km) |
| Castle Rock to Manhattan Beach (California) | 839.94 mi (1,351.76 km) |
| Castle Rock to Manitowoc (Wisconsin) | 941.40 mi (1,515.03 km) |
| Castle Rock to Mankato (Minnesota) | 650.25 mi (1,046.47 km) |
