EUROPEAN TROPOSPHERIC SCATTER-ARMY Layout of Mainline Site 8.1 (Stein). The graph shows the location of equipment shelters and vans (green) that were initially setup at the site and the future locations of buildings (sand) that were scheduled for construction. The location of the antenna tower is shown in blue. (Source: TM 11-5895-376-14-1, August 1976; graph modified by Walter Elkins)