Hello ! You can start here: http://marginal.org.uk/x-planescenery/index.html http://scenery.x-plane.com/tutorials.php http://xplane10.wordpress.com/2011/02/14/scenery-tutorial-sketchup-is-too-easy/ http://xplane10.wordpress.com/2011/02/20/sketchup-for-scenery-creation-tutorial-2-texturing/ http://xplane10.wordpress.com/2010/08/21/scenery-update-no-3-success-with-sketchup/ Happy building !