| Spanish Lake to Cascais | 4,195.55 mi (6,752.08 km) |
| Spanish Lake to Castelo Branco | 4,249.37 mi (6,838.71 km) |
| Spanish Lake to Castro Daire | 4,194.06 mi (6,749.70 km) |
| Spanish Lake to Celorico de Basto | 4,175.55 mi (6,719.90 km) |
| Spanish Lake to Chamusca | 4,218.54 mi (6,789.09 km) |
| Spanish Lake to Chaves | 4,188.44 mi (6,740.64 km) |
| Spanish Lake to Cinfaes | 4,178.42 mi (6,724.52 km) |
| Spanish Lake to Coimbra | 4,193.16 mi (6,748.24 km) |
| Spanish Lake to Condeixa-a-Nova | 4,192.90 mi (6,747.82 km) |
| Spanish Lake to Corroios | 4,210.98 mi (6,776.91 km) |
| Spanish Lake to Coruche | 4,229.35 mi (6,806.48 km) |
| Spanish Lake to Costa de Caparica | 4,205.97 mi (6,768.85 km) |
| Spanish Lake to Covilha | 4,234.10 mi (6,814.13 km) |
| Spanish Lake to Eiras | 4,192.41 mi (6,747.03 km) |
| Spanish Lake to Elvas | 4,297.29 mi (6,915.82 km) |
