| Cave Spring to Cascais | 3,745.86 mi (6,028.37 km) |
| Cave Spring to Castelo Branco | 3,811.55 mi (6,134.10 km) |
| Cave Spring to Castro Daire | 3,762.52 mi (6,055.20 km) |
| Cave Spring to Celorico de Basto | 3,747.20 mi (6,030.54 km) |
| Cave Spring to Chamusca | 3,775.28 mi (6,075.73 km) |
| Cave Spring to Chaves | 3,763.84 mi (6,057.32 km) |
| Cave Spring to Cinfaes | 3,747.79 mi (6,031.48 km) |
| Cave Spring to Coimbra | 3,755.76 mi (6,044.30 km) |
| Cave Spring to Condeixa-a-Nova | 3,754.69 mi (6,042.58 km) |
| Cave Spring to Corroios | 3,761.37 mi (6,053.33 km) |
| Cave Spring to Coruche | 3,783.43 mi (6,088.83 km) |
| Cave Spring to Costa de Caparica | 3,756.35 mi (6,045.26 km) |
| Cave Spring to Covilha | 3,799.40 mi (6,114.54 km) |
| Cave Spring to Eiras | 3,755.22 mi (6,043.44 km) |
| Cave Spring to Elvas | 3,854.11 mi (6,202.59 km) |
