Find Your Way tothe Observatory
Follow your marker along a gentle path. Grapple over a large canyon, and search for a new Base Camp (Ridgeline) on the other side of a river. Look over the edge of a waterfall for a truly splendid view, and search the camp for an Archivist’s Map. There is also a Survival Cache near a barricaded entrance. Break the barricade to find a Document inside a small cubby.
Meet your allies by the staircase to the north. They come up to the observatory with you. An extended scene follows. When it ends, you leave for the Soviet Installation once again.