[electroly]

The fact that it only shows America is, perhaps, the most obvious tell ;)

[roter]

Except for the isolated hex in Ontario, Canada. Note that this was probably built from the USCRN network [0] which has a research station in Egbert [1].

[0] https://www.ncei.noaa.gov/access/crn/ [1] https://www.atdd.noaa.gov/u-s-crn-groups-map/

[chestnuttrees]

Dang. This is why it’s fun to read HN. Thanks!