| Upper Grand Lagoon to Cadillac (Michigan) | 973.02 mi (1,565.92 km) |
| Upper Grand Lagoon to Caguas (Puerto Rico) | 1,486.72 mi (2,392.65 km) |
| Upper Grand Lagoon to Cahokia (Illinois) | 632.71 mi (1,018.25 km) |
| Upper Grand Lagoon to Calabasas (California) | 1,937.15 mi (3,117.55 km) |
| Upper Grand Lagoon to Caldwell (Idaho) | 1,929.39 mi (3,105.06 km) |
| Upper Grand Lagoon to Caledonia (Wisconsin) | 880.56 mi (1,417.13 km) |
| Upper Grand Lagoon to Calera (Alabama) | 212.63 mi (342.20 km) |
| Upper Grand Lagoon to Calexico (California) | 1,757.07 mi (2,827.73 km) |
| Upper Grand Lagoon to Calhoun (Georgia) | 302.27 mi (486.45 km) |
| Upper Grand Lagoon to California (Maryland) | 770.07 mi (1,239.31 km) |
| Upper Grand Lagoon to California City (California) | 1,892.02 mi (3,044.91 km) |
| Upper Grand Lagoon to Callaway (Florida) | 11.24 mi (18.08 km) |
| Upper Grand Lagoon to Calumet City (Illinois) | 797.14 mi (1,282.87 km) |
| Upper Grand Lagoon to Calverton (Maryland) | 791.05 mi (1,273.06 km) |
| Upper Grand Lagoon to Camano (Washington) | 2,295.63 mi (3,694.46 km) |
