| Grass Valley to Oliveira de Frades | 5,484.57 mi (8,826.56 km) |
| Grass Valley to Oliveira do Bairro | 5,481.98 mi (8,822.39 km) |
| Grass Valley to Oliveira do Hospital | 5,513.81 mi (8,873.62 km) |
| Grass Valley to Ourem | 5,520.50 mi (8,884.39 km) |
| Grass Valley to Ovar | 5,460.33 mi (8,787.55 km) |
| Grass Valley to Pacos de Ferreira | 5,450.27 mi (8,771.37 km) |
| Grass Valley to Palmela | 5,558.87 mi (8,946.14 km) |
| Grass Valley to Paredes | 5,455.96 mi (8,780.51 km) |
| Grass Valley to Paredes de Coura | 5,413.64 mi (8,712.41 km) |
| Grass Valley to Penacova | 5,501.94 mi (8,854.52 km) |
| Grass Valley to Penafiel | 5,457.54 mi (8,783.06 km) |
| Grass Valley to Peniche | 5,503.57 mi (8,857.14 km) |
| Grass Valley to Peso da Regua | 5,478.63 mi (8,817.01 km) |
| Grass Valley to Pinhal Novo | 5,555.27 mi (8,940.35 km) |
| Grass Valley to Pinhel | 5,523.62 mi (8,889.41 km) |
