| Elk River to Cascais | 4,142.94 mi (6,667.42 km) |
| Elk River to Castelo Branco | 4,180.10 mi (6,727.23 km) |
| Elk River to Castro Daire | 4,117.67 mi (6,626.76 km) |
| Elk River to Celorico de Basto | 4,095.45 mi (6,591.00 km) |
| Elk River to Chamusca | 4,156.93 mi (6,689.93 km) |
| Elk River to Chaves | 4,103.43 mi (6,603.83 km) |
| Elk River to Cinfaes | 4,101.15 mi (6,600.17 km) |
| Elk River to Coimbra | 4,124.31 mi (6,637.44 km) |
| Elk River to Condeixa-a-Nova | 4,125.09 mi (6,638.69 km) |
| Elk River to Corroios | 4,158.00 mi (6,691.66 km) |
| Elk River to Coruche | 4,171.10 mi (6,712.73 km) |
| Elk River to Costa de Caparica | 4,153.09 mi (6,683.75 km) |
| Elk River to Covilha | 4,161.06 mi (6,696.58 km) |
| Elk River to Eiras | 4,123.28 mi (6,635.78 km) |
| Elk River to Elvas | 4,234.25 mi (6,814.36 km) |
