See how much fun you can have with a bit of foam, some painter’s caulk and some brown shades of acrylic paint.
Chisel out where you want (or rather, where you don’t want) your mountains.
The seal the foam with painters caulk.
Paint the rocks a light tan. Than dab on a darker brown to give it depth.
It sounds simple – and it is.
But the effect it brings to a model railroad layout can be pretty impressive.