| Shasta Lake to Cascais | 5,515.35 mi (8,876.09 km) |
| Shasta Lake to Castelo Branco | 5,532.74 mi (8,904.09 km) |
| Shasta Lake to Castro Daire | 5,463.36 mi (8,792.43 km) |
| Shasta Lake to Celorico de Basto | 5,437.20 mi (8,750.32 km) |
| Shasta Lake to Chamusca | 5,519.00 mi (8,881.97 km) |
| Shasta Lake to Chaves | 5,438.85 mi (8,752.98 km) |
| Shasta Lake to Cinfaes | 5,446.20 mi (8,764.82 km) |
| Shasta Lake to Coimbra | 5,478.82 mi (8,817.31 km) |
| Shasta Lake to Condeixa-a-Nova | 5,480.80 mi (8,820.50 km) |
| Shasta Lake to Corroios | 5,529.67 mi (8,899.15 km) |
| Shasta Lake to Coruche | 5,536.64 mi (8,910.36 km) |
| Shasta Lake to Costa de Caparica | 5,524.97 mi (8,891.58 km) |
| Shasta Lake to Covilha | 5,509.68 mi (8,866.98 km) |
| Shasta Lake to Eiras | 5,477.49 mi (8,815.18 km) |
| Shasta Lake to Elvas | 5,592.87 mi (9,000.85 km) |
