| Boulder City to Cassina de' Pecchi | 5,830.93 mi (9,383.98 km) |
| Boulder City to Cassino | 6,187.17 mi (9,957.28 km) |
| Boulder City to Castagneto Carducci | 5,992.57 mi (9,644.10 km) |
| Boulder City to Castano Primo | 5,809.62 mi (9,349.68 km) |
| Boulder City to Castel Bolognese | 5,971.88 mi (9,610.82 km) |
| Boulder City to Castel Gandolfo | 6,135.13 mi (9,873.54 km) |
| Boulder City to Castel Goffredo | 5,878.09 mi (9,459.87 km) |
| Boulder City to Castel Maggiore | 5,944.84 mi (9,567.30 km) |
| Boulder City to Castel Mella | 5,857.19 mi (9,426.23 km) |
| Boulder City to Castel San Giorgio | 6,254.02 mi (10,064.88 km) |
| Boulder City to Castel San Giovanni | 5,856.98 mi (9,425.89 km) |
| Boulder City to Castel San Pietro Terme | 5,960.54 mi (9,592.56 km) |
| Boulder City to Castel Volturno | 6,214.00 mi (10,000.47 km) |
| Boulder City to Castelbuono | 6,387.27 mi (10,279.31 km) |
| Boulder City to Casteldaccia | 6,361.50 mi (10,237.84 km) |
