The page contains maps of 4 open locations (the Plains of Eidolon, the Orb Vallis, the Cambion Drift and the Duviri). To move the map across the screen, use the LMB and move the mouse in the desired direction. For more information about the marked regions on the maps, click on the appropriate icon.
Let us know if you notice an inaccuracy or typo on the maps. Thanks!