| Upper Grand Lagoon to Commerce (California) | 1,907.75 mi (3,070.22 km) |
| Upper Grand Lagoon to Commerce City (Colorado) | 1,267.53 mi (2,039.89 km) |
| Upper Grand Lagoon to Compton (California) | 1,912.22 mi (3,077.42 km) |
| Upper Grand Lagoon to Comstock Park (Michigan) | 889.57 mi (1,431.62 km) |
| Upper Grand Lagoon to Concord (California) | 2,129.70 mi (3,427.42 km) |
| Upper Grand Lagoon to Concord (Missouri) | 633.51 mi (1,019.53 km) |
| Upper Grand Lagoon to Concord (New Hampshire) | 1,193.03 mi (1,920.00 km) |
| Upper Grand Lagoon to Concord (North Carolina) | 466.95 mi (751.48 km) |
| Upper Grand Lagoon to Conneaut (Ohio) | 861.83 mi (1,386.98 km) |
| Upper Grand Lagoon to Connersville (Indiana) | 656.52 mi (1,056.56 km) |
| Upper Grand Lagoon to Conroe (Texas) | 581.38 mi (935.64 km) |
| Upper Grand Lagoon to Converse (Texas) | 754.22 mi (1,213.80 km) |
| Upper Grand Lagoon to Conway (Arkansas) | 517.66 mi (833.09 km) |
| Upper Grand Lagoon to Conway (Florida) | 289.59 mi (466.05 km) |
| Upper Grand Lagoon to Conway (South Carolina) | 467.09 mi (751.70 km) |
