This is a part of a set of 3D maps of several sites around the world. 
You can ask for your site in PM.

Site: Alta Val D'Agri (Basilicata region, Italy)
The STL is a in-scale version of the real orography. A 1mm base is added.
Recommendation:
-300% z-axis amplification (otherwise the result is quite flat).
-80+% infill 
-20 cm x-axis
NOTE: After the amplification the 1mm base will become a 3mm base, so you can cut a bit on order to save some filament.