FS2004/FSX – Mountain Landclass flight2000it 14 years ago FS2004/FSX – Mountain Landclass v2.1. No longer fly over green mountains in the western USA or the European Alps. Compatible with Ultimate Terrain and Ground Environment series. By Markus Balz. 2 MB – FSX Scenery–Rocky Mountains Landclass– FS2004 Scenery–Rocky Mountains LandclassFSX – Scotland Landclass Scenery