Lon,Lat VS Lat,Lon
The GeoJSON Format - RFC 7946, Section 3.1.1
The first two elements are longitude and latitude, or easting and northing...
ISO 6709 or ISO:19111, 3.1.23 ellipsoidal coordinate system
This document specifies the representation of latitude and longitude and optionally height or depth ...
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https://macwright.com/lonlat/