Average GPS coordinates for San Martin Postcode location: -6.494, -77.996. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). San Martin on map:

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Listing cities & postcodes (2):
>> Amazonas, 01445 San Martin, Luya, GPS coordinates: -6.57028, -77.87389
>> Amazonas, 01565 San Martin, Utcubamba, GPS coordinates: -6.41722, -78.11722