| Boulder to Cascais | 4,839.39 mi (7,788.25 km) |
| Boulder to Castelo Branco | 4,876.69 mi (7,848.28 km) |
| Boulder to Castro Daire | 4,814.10 mi (7,747.55 km) |
| Boulder to Celorico de Basto | 4,791.74 mi (7,711.57 km) |
| Boulder to Chamusca | 4,853.55 mi (7,811.04 km) |
| Boulder to Chaves | 4,799.46 mi (7,723.99 km) |
| Boulder to Cinfaes | 4,797.56 mi (7,720.92 km) |
| Boulder to Coimbra | 4,820.91 mi (7,758.51 km) |
| Boulder to Condeixa-a-Nova | 4,821.71 mi (7,759.79 km) |
| Boulder to Corroios | 4,854.47 mi (7,812.51 km) |
| Boulder to Coruche | 4,867.69 mi (7,833.78 km) |
| Boulder to Costa de Caparica | 4,849.55 mi (7,804.60 km) |
| Boulder to Covilha | 4,857.58 mi (7,817.51 km) |
| Boulder to Eiras | 4,819.88 mi (7,756.85 km) |
| Boulder to Elvas | 4,930.88 mi (7,935.48 km) |
