Siberian Wilderness - Collectibles (Part 4)

If you now turn and face east, toward the abandoned encampment, you'll spot a wooden platform in a tree with a red flag dangling from it and a box sitting on top.

To get up there, start by hopping down from the ledge where you found the document and heading up the slope toward the base camp and the deer carcass you skinned at the beginning of the level.

Before you reach the carcass, turn around. The wooden platform is now directly ahead.

Use Survival Instinct to highlight the branches you'll use to reach it.

Scramble up the tree on the right to grab the broken branch. Pull up to perch on top of it.

Then jump to grab the branch ahead on the left...

...swing forward...

...and jump to grab the next branch.

Pull up onto this branch. Then walk out to the end of it.

Jump from there to grab the edge of the wooden platform.

Pull up and open the box to get some hardwood. There's also a bird's nest behind the center pole which you can loot for feathers. Use these to make arrows by holding RT/Left Mouse. Drop down (or ride the zip line) to the ground.