Average GPS coordinates for Isla San Marcos Postcode location: 27.133, -112.167. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Isla San Marcos on map:

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Listing cities & postcodes (1):
>> Baja California Sur, 23910 Isla San Marcos, Mulege, GPS coordinates: 27.1333,-112.1667