| Boulder to Brezovica | 5,423.03 mi (8,727.53 km) |
| Boulder to Cankova | 5,438.70 mi (8,752.74 km) |
| Boulder to Celje | 5,439.58 mi (8,754.15 km) |
| Boulder to Cerklje na Gorenjskem | 5,413.66 mi (8,712.45 km) |
| Boulder to Cerknica | 5,432.46 mi (8,742.70 km) |
| Boulder to Cerkno | 5,403.67 mi (8,696.37 km) |
| Boulder to Cerkvenjak | 5,444.21 mi (8,761.61 km) |
| Boulder to Cirkulane | 5,457.28 mi (8,782.65 km) |
| Boulder to Crensovci | 5,454.87 mi (8,778.76 km) |
| Boulder to Crna na Koroskem | 5,414.18 mi (8,713.29 km) |
| Boulder to Crnomelj | 5,471.03 mi (8,804.77 km) |
| Boulder to Destrnik | 5,446.01 mi (8,764.50 km) |
| Boulder to Divaca | 5,425.52 mi (8,731.53 km) |
| Boulder to Dobje | 5,448.72 mi (8,768.87 km) |
| Boulder to Dobrna | 5,433.12 mi (8,743.76 km) |
