Average GPS coordinates for Altos Postcode location: -5.161, -42.45. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Altos on map:

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Listing cities & postcodes (1):
>> Piaui, 64290-000 Altos, GPS coordinates: -5.1609,-42.4504