| Boulder to Oliveira de Frades | 4,810.93 mi (7,742.44 km) |
| Boulder to Oliveira do Bairro | 4,805.54 mi (7,733.77 km) |
| Boulder to Oliveira do Hospital | 4,839.08 mi (7,787.75 km) |
| Boulder to Ourem | 4,837.76 mi (7,785.62 km) |
| Boulder to Ovar | 4,785.77 mi (7,701.94 km) |
| Boulder to Pacos de Ferreira | 4,779.57 mi (7,691.98 km) |
| Boulder to Palmela | 4,867.37 mi (7,833.27 km) |
| Boulder to Paredes | 4,785.07 mi (7,700.83 km) |
| Boulder to Paredes de Coura | 4,746.87 mi (7,639.35 km) |
| Boulder to Penacova | 4,824.74 mi (7,764.66 km) |
| Boulder to Penafiel | 4,786.92 mi (7,703.80 km) |
| Boulder to Peniche | 4,815.32 mi (7,749.50 km) |
| Boulder to Peso da Regua | 4,809.97 mi (7,740.90 km) |
| Boulder to Pinhal Novo | 4,864.14 mi (7,828.07 km) |
| Boulder to Pinhel | 4,855.44 mi (7,814.07 km) |
