AlpineQuest & OfflineMaps

In fact hardly any at all. Too much attention to the surface of the earth, not enough attention to the inside.

Plenty of, even... light pollution maps, Airways and seaways... deep ocean maps, but not deep earth maps.

Do I have any specific ones to offer? Well actually I didn't check. I was just hoping somebody could find some and put them on the list.

Hi,
App store< download field maps (Arcgis/Esri) If you're lucky you will find some maps of use.
Greetings
Jos

Hi,
You're right, there are not much of them.
Personally I don't know such map freely available in a common format.