Average GPS coordinates for El Castillo Postcode location: -9.716, -76.745. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). El Castillo on map:

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Listing cities & postcodes (1):
>> Huanuco, 10615 El Castillo, Dos de Mayo, GPS coordinates: -9.71605, -76.74542