I seem to have encountered an issue with this model. I tried to load it in 3ds max, but it said something about an object not being named. I took it in to 3d builder, and it loaded ok, but said it had errors (due to them not being manifold) and I let it run the repair on the ungrouped meshes. It looked fine after, so I saved it, but now all the mountain bits are gone, and there's just a handful of random polygons. I'd like to try some more things to get a better look at your mesh, but now I'm not able to download it again. Hopefully I can try again later.

Nice

Looks pretty nice!

Thank you for sharing this nice work !