Guild Wars 2 Desert Highlands Salt Flats Mastery

In the Salt Flats of the Desert Highlands of Guild Wars 2, there is a Mastery shown on the map, but where is it? Actually, it is directly above you but you can not see it. To get to it, start on the Mastery icon on the map and take your lvl 3 Jackal and head north and I will show you the route.