MeshXP Idaho West Wyoming and West Montana is compiled using 10 m resolution elevation models. MeshXP function is to add elvations points to the terrain to further increase elevations precision and a better shaped terrain. Hydro Scenery have been also upgraded to be more precise with Nhd high res. data. This mesh can be used on its own or underneath photorealistic scenery. It use X-Plane 12 default Vectors ie roads, landlass. This is an X-Plane 12 terrain mesh. Coverage: Idaho; West Wyoming and West Montana. No decrease of frame rates. All MeshXP packages are designed to fit into each over to provide continuous coverage.