| River Forest to Cascais | 3,986.92 mi (6,416.33 km) |
| River Forest to Castelo Branco | 4,036.21 mi (6,495.65 km) |
| River Forest to Castro Daire | 3,978.88 mi (6,403.40 km) |
| River Forest to Celorico de Basto | 3,959.36 mi (6,371.98 km) |
| River Forest to Chamusca | 4,007.42 mi (6,449.32 km) |
| River Forest to Chaves | 3,971.00 mi (6,390.71 km) |
| River Forest to Cinfaes | 3,962.98 mi (6,377.80 km) |
| River Forest to Coimbra | 3,980.00 mi (6,405.20 km) |
| River Forest to Condeixa-a-Nova | 3,980.02 mi (6,405.23 km) |
| River Forest to Corroios | 4,002.27 mi (6,441.04 km) |
| River Forest to Coruche | 4,019.19 mi (6,468.26 km) |
| River Forest to Costa de Caparica | 3,997.28 mi (6,433.00 km) |
| River Forest to Covilha | 4,019.89 mi (6,469.39 km) |
| River Forest to Eiras | 3,979.17 mi (6,403.86 km) |
| River Forest to Elvas | 4,085.92 mi (6,575.65 km) |
