D&D 3d Town Map produced using 

https://watabou.itch.io/medieval-fantasy-city-generator, blender, and inkscape.

Fixed and reduced in Makeprintable.

This is a First Test run.  Noticed that I could have fix filled the bottom and had it flat and therefore reduced the file size immensely… So this Idea is still in the works.  Dragging the pic into Cura for an auto lithophane was producing noisy results.. so I opted for inkscape and blender.  svg to mesh, make solid, add landscape generator … so on so on … then sent to makeprintable to fix the messy mesh.