Large Resource Deposits are present mostly under the brine lake surrounding the colossal skeleton and the caves underneath. On these you can find Rubies, Lithium, Green Table Coral and sometimes Magnetite. There are a few hydrothermal vents in this area. One should be cautious when entering through there to here. The Ghost Leviathan Juvenile in this region is facing directly to the Ghost Canyon. It is connected to the Blood Kelp Trench via the Lost River Corridor, and to the Deep Grand Reef via the Ghost Canyon, each of them having their own flora and particular landscapes. The Bone Fields is a vast cavern within the Lost River, centered on the Gargantuan Fossil which gives the Bone Fields its name. The Lost River is composed of seven distinct areas, each holding similar resources, but some more dangerous than others: However, be careful so that the exit hatch is not near the vent. Additionally, be conscious of the hull integrity so that the Seabase does not take any damage.Ī player can attempt to park their Cyclops above a thermal vent in order to charge it with a Cyclops thermal reactor module. Note that there is enough resources, like lead, in the lost river for the player, for them to build a nuclear reactor and nuclear reactor rods. Any other resource can usually be acquired on the spot. It is advised to bring plenty of Titanium with the player, since there are little large Titanium deposits there. If you wish to build a Seabase in the Lost River, a Thermal Plant next to a thermal vent is one of the best ways to power a base in this biome. Hence, thermal reactor modules do not work very well here. The Lost River is one of the coldest biomes implemented, with temperatures on the sea floor rarely rising above 10 degrees Celsius. Note that it might be beneath the player, having sunk to the bottom of the ocean.

You can follow alien remains, like large columns to find the main Facility. The Disease Research Facility is located in the Lost River, inside a cavern with its opening in the Junction and the Mountains corridor. The brine pools do damage to the Seamoth as well.įauna and flora found within the Lost River are immune to the brine, a trait carried only by them. The brine pools found throughout most of the cave system will harm the player upon direct contact, with the exception being while within the Prawn Suit, or when within the harmless blue brine found within the Tree Cove. These brine pools cover almost all of the lower portions of the caverns. The Lost River is a frigid, generally gloomy and foggy biome, possessing a distinct greenish tint in the water that is mostly illuminated by the alkaline brine pools, as well as an eerie atmosphere with the occasional Ghostray wails.

Map of lost river subnautica