Keep finding more areas in this alpha, its really a massive landmass were on and the devs have said its only 10% of the final game.
I found a valley to the right of the slope before the building with the radar on top. Follow it round (great to navigate with your Speeder) you'll come to some grounded ships. Careful though as go too far and you'll come across some enemies with ??? where their level should be. They kill you fast....
