Average GPS coordinates for Mount Observation Postcode location: -31.926, 116.735. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Mount Observation on map:

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Listing cities & postcodes (1):
>> Western Australia, 6302 Mount Observation, KALGOORLIE, GPS coordinates: -31.9264,116.7354