| Blackrock to Corinth (Mississippi) | 4,032.15 mi (6,489.13 km) |
| Blackrock to Corinth (Texas) | 4,456.16 mi (7,171.50 km) |
| Blackrock to Cornelius (North Carolina) | 3,702.10 mi (5,957.96 km) |
| Blackrock to Cornelius (Oregon) | 4,663.34 mi (7,504.92 km) |
| Blackrock to Corning (New York) | 3,241.03 mi (5,215.93 km) |
| Blackrock to Corona (California) | 5,153.42 mi (8,293.62 km) |
| Blackrock to Coronado (California) | 5,207.47 mi (8,380.61 km) |
| Blackrock to Corpus Christi (Texas) | 4,752.23 mi (7,647.97 km) |
| Blackrock to Corsicana (Texas) | 4,488.04 mi (7,222.80 km) |
| Blackrock to Cortland (New York) | 3,186.50 mi (5,128.18 km) |
| Blackrock to Corvallis (Oregon) | 4,723.37 mi (7,601.52 km) |
| Blackrock to Coshocton (Ohio) | 3,514.93 mi (5,656.74 km) |
| Blackrock to Costa Mesa (California) | 5,175.96 mi (8,329.90 km) |
| Blackrock to Coto de Caza (California) | 5,169.11 mi (8,318.88 km) |
| Blackrock to Cottage Grove (Minnesota) | 3,724.28 mi (5,993.65 km) |
