GPS CACHE 1/2
Coordinates: [712459; 3416225]
Note: On the ground near the base, next to the wreckage of the truck (reward: 5 XP).
GPS CACHE 2/2
Coordinates: [712456; 3416248]
Note: On the gallery of the southern building in the base, the one you go through at the very end. Start by leaping over a destroyed bridge. Turn left there.
Follow the gallery until you find the Cache (reward: 5 XP).