Rise of the Tomb Raider: Survival Caches, Siberian Wilderness secrets, location Rise of the Tomb Raider guide, walkthrough
Survival cache 1

Among trees, right past the spot, where two opponents used to talk. At the moment at which a message of the locals' traps is transmitted via the radio (during the mission).
Survival cache 2

Buried at the stone wall, close to the Monolith.
Survival cache 3

On the ledge, right next to the tree.
See/Add Comments