Average GPS coordinates for Arca Postcode location: 41.557, -8.384. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Arca on map:

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Listing cities & postcodes (3):
>> Braga, 4730-591 Arca, Resende, Turiz, GPS coordinates: 41.5333,-8.6
>> Braga, 4810-647 Arca, Santa Cruz, Vilarinho de Agrochão, GPS coordinates: 41.5775,-8.2658
>> Braga, 4810-717 Arca, Santa Cruz, Vilarinho de Agrochão, GPS coordinates: 41.5611,-8.2852