| Upper Grand Lagoon to Cascais | 4,264.61 mi (6,863.23 km) |
| Upper Grand Lagoon to Castelo Branco | 4,338.89 mi (6,982.77 km) |
| Upper Grand Lagoon to Castro Daire | 4,294.62 mi (6,911.52 km) |
| Upper Grand Lagoon to Celorico de Basto | 4,281.55 mi (6,890.48 km) |
| Upper Grand Lagoon to Chamusca | 4,298.85 mi (6,918.33 km) |
| Upper Grand Lagoon to Chaves | 4,300.52 mi (6,921.02 km) |
| Upper Grand Lagoon to Cinfaes | 4,280.60 mi (6,888.96 km) |
| Upper Grand Lagoon to Coimbra | 4,283.79 mi (6,894.10 km) |
| Upper Grand Lagoon to Condeixa-a-Nova | 4,282.15 mi (6,891.45 km) |
| Upper Grand Lagoon to Corroios | 4,280.07 mi (6,888.11 km) |
| Upper Grand Lagoon to Coruche | 4,304.88 mi (6,928.04 km) |
| Upper Grand Lagoon to Costa de Caparica | 4,275.08 mi (6,880.08 km) |
| Upper Grand Lagoon to Covilha | 4,329.05 mi (6,966.93 km) |
| Upper Grand Lagoon to Eiras | 4,283.42 mi (6,893.50 km) |
| Upper Grand Lagoon to Elvas | 4,377.17 mi (7,044.37 km) |
