Average GPS coordinates for Whitehorse Postcode location: 45.099, -100.879. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Whitehorse on map:

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Listing cities & postcodes (1):
>> South Dakota, 57661 Whitehorse, Dewey, GPS coordinates: 45.0987,-100.8792