| Ridge to Cadillac (Michigan) | 677.42 mi (1,090.20 km) |
| Ridge to Caguas (Puerto Rico) | 1,618.39 mi (2,604.54 km) |
| Ridge to Cahokia (Illinois) | 931.60 mi (1,499.27 km) |
| Ridge to Calabasas (California) | 2,523.02 mi (4,060.41 km) |
| Ridge to Caldwell (Idaho) | 2,220.03 mi (3,572.79 km) |
| Ridge to Caledonia (Wisconsin) | 781.60 mi (1,257.87 km) |
| Ridge to Calera (Alabama) | 933.02 mi (1,501.56 km) |
| Ridge to Calexico (California) | 2,400.23 mi (3,862.80 km) |
| Ridge to Calhoun (Georgia) | 793.16 mi (1,276.47 km) |
| Ridge to California (Maryland) | 263.62 mi (424.25 km) |
| Ridge to California City (California) | 2,453.16 mi (3,947.98 km) |
| Ridge to Callaway (Florida) | 1,028.35 mi (1,654.98 km) |
| Ridge to Calumet City (Illinois) | 762.53 mi (1,227.17 km) |
| Ridge to Calverton (Maryland) | 250.33 mi (402.87 km) |
| Ridge to Camano (Washington) | 2,448.79 mi (3,940.94 km) |
