Prosečne GPS koordinate za poštanski broj 3660-309: 41.117, -7.883
Spisak gradova:
>> Ribeira de Amarante 3660-309, Viseu, São Pedro do Sul, Lombo, GPS koordinate: 41.1167,-7.8833
Spisak gradova:
>> Ribeira de Amarante 3660-309, Viseu, São Pedro do Sul, Lombo, GPS koordinate: 41.1167,-7.8833