Isometric Geological Diagrams

I've only ever seen something similar by the British Geological Society in 2015:

https://www.bgs.ac.uk/discovering-geology/maps-and-resources...

Both of these are fantastic visual aids for those with a moderate amount of geology knowledge.

Often crossections are meant to be functional, eg, grabbing a ruler and measuring. As such, these seem more useful than actual. You'd still want a flat section if you're trying to estimate location and depth.