This location's central feature is a large tree in the water that has been overtaken by strangler vines. A system of wooden walkways spiral up the tree, with several boats, crates, and skeletons entrapped in its vines. A locked explosives crate can be found along the walkway. At the top of the treehouse is a dirty mattress and a duffle bag next to a toilet and bathtub. There is also a grill and a table filled with various cooking-related junk items.
- Potential recipe - On the first table encountered while going up the walkway.
It is possible for the player character to wake up here after blacking out from drinking Nukashine.
The river treehouse appears only in Fallout 76.
- Fallout 76 Vault Dweller's Survival Guide p. 476: "The Mire (Zone B) - Secondary Locations
43. River Treehouse: Want precarious platform ascending, mattress sleeping, and irradiated waters? Then this is the place for a junk hunt."
(Fallout 76 Vault Dweller's Survival Guide Atlas of Appalachia)