Chinese coordinates
I found an interesting article that describes the use of coordinates in China. They have come up with a coordinate system that, unless you have a secret decoder ring, can result in errors of 500 to 700 meters. And you need to license it to be able to use it.
https://en.wikipedia.org/wiki/Restrictions_on_geographic_data_in_China#Coordinate_systems
Can’t let those coordinates fall into the wrong hands…
I tried to look for this station about 30 years ago…didn’t quite get there…yet they still have it listed in the NSRS
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