I've completely regenerated all of the images from the base (FAA) set
using the modifified GDAL. Please verify that the GeoTIFFs are now as
they need to be.
https://aviationtoolbox.org/Members/...s/map_explorer

I now see tags such as this.
ProjNatOriginLongGeoKey (Double,1): -100.583333

Thank you.

--kyler