| Grass Valley to Cascais | 5,532.23 mi (8,903.27 km) |
| Grass Valley to Castelo Branco | 5,553.57 mi (8,937.60 km) |
| Grass Valley to Castro Daire | 5,485.34 mi (8,827.80 km) |
| Grass Valley to Celorico de Basto | 5,459.84 mi (8,786.76 km) |
| Grass Valley to Chamusca | 5,537.97 mi (8,912.51 km) |
| Grass Valley to Chaves | 5,462.63 mi (8,791.25 km) |
| Grass Valley to Cinfaes | 5,468.27 mi (8,800.32 km) |
| Grass Valley to Coimbra | 5,499.18 mi (8,850.07 km) |
| Grass Valley to Condeixa-a-Nova | 5,500.94 mi (8,852.90 km) |
| Grass Valley to Corroios | 5,546.73 mi (8,926.61 km) |
| Grass Valley to Coruche | 5,554.96 mi (8,939.84 km) |
| Grass Valley to Costa de Caparica | 5,541.98 mi (8,918.96 km) |
| Grass Valley to Covilha | 5,531.22 mi (8,901.63 km) |
| Grass Valley to Eiras | 5,497.91 mi (8,848.03 km) |
| Grass Valley to Elvas | 5,612.66 mi (9,032.71 km) |
