Mountain Island | Subnautica Wiki - Fandom

This article is about the Mountain Island. You may be looking for the Mountains, the Floating Island or the Underwater Islands.

Read at own riskThis article contains unmarked spoilers. Players new to the game would want to avoid or be cautious toward this article.

Mountain Island

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Biomes

Type

Islands

Depth Range

• 0 - 155 meters above sea level

Temperature Range

• 20.5°C-30.3°C

Harvesting Nodes

• Shale Outcrop

Point of Interest

• Quarantine Enforcement Platform
  • Alien Arch
  • Alien Arch Cache

• Mountains Caves Entrance

• 335 10 1025

Music

• Violet Beau

The Mountain Island is a large island biome. It is located on top of a mountain range in the Mountains. It is located 1000m northwest of the wreck of the Aurora and is next to the Bulb Zone, Kelp Forest, Mushroom Forest and the Underwater Islands. The Mountain Island also harbors the Quarantine Enforcement Platform at its northern tip.

The Island is shrouded by fog, so it isn't visible until one is relatively close to it. However, the player can receive coordinates for its location from the Sunbeam.

Contents

• 1 Description
• 2 Notes
• 3 Gallery
• 4 Bugs

Description

The Mountain Island is characterized by rocks of various sizes and a fairly large mountain in the center, surrounded by an extensive shoreline.

The Island is also connected to the Mountains Caves, with its entrances accessible from both underwater and on land.

The Mountain Island can be fully explored on foot, featuring a small variety of flora, like Bulbo Trees, bioluminescent grass and Pink Caps as well as Speckled Rattlers. This island, unlike the Floating Island, is part of a continental shelf. The path to the summit is marked by Precursor technology; along the path, two Purple Alien Tablets can be found. Near the summit of the island is a Principal Alien Arch Cache connected to the Floating Island Arch.

Some of the caves lead to a lagoon, which houses many types of flora and connects to the island's base.

• Resources
• Fauna
• Flora
• Fragments

• Diamond
• Gold
• Large Lead Deposit
• Lithium
• Salt Deposit

Cave Crawler

Skyray

Bulbo Tree

Pink Cap

Speckled Rattler

Purple Tablet Fragment

Notes

• The caves leading to the Alien Arch are extremely rich in rare resources whose acquisition normally requires exploring much more dangerous biomes. Shale Outcrops and Lithium in particular are abundant, providing easy access to Gold, Lithium, and Diamonds for anyone capable of handling a large number of Cave Crawlers in the area.
• If the player opens their PDA in the direction of the Mountain Island from anywhere on the map, like a spyglass, the clouds shrouding the island will glow a bright white. This shows the player in which clouds are real or fake, which reveals the exact location of the island. This method of finding the island works regardless of which PDA menu the player is on, but it only works during the daytime and while above the surface. It also works on the clouds shrouding the Floating Island.

Gallery

• Screenshots
• Concept Art

Mountain Island OverviewDitto, at nightMain part of the Mountain Island's beachBirds-eye view of the Mountain Island's beachLagoon Entrance, found upon the beachUnderwater Entrance, leading to the LagoonA view inside the underwater cavesA small underwater cave at the base of the Mountain IslandMountain Island Lagoon OverviewMountain Island Lagoon from a small cave aboveMountain Island Lagoon from underwaterA pathway leading up the side of the Mountain Island to the cave systemA pathway leading from the Cave System to the top of the mountainDitto, opposite sideThe entrance to the cave systemA view inside the caves.The caves of the island are full of Shale Outcrops and LithiumA view of the Quarantine Enforcement PlatformThe cave leading to the ArchThe Alien Arch of the Mountain Island, unpoweredDitto, poweredSkyrays flying above the Mountain IslandConcept Art of the Mountain Island, along with the Quarantine Enforcement Platform

Bugs

• The clouds shrouding the island aren't visible, making it quite hard to locate the island.

v · d · eBiomes in Subnautica
Aquatic	Blood Kelp Zone Bulb Zone Crag Field Crash Zone Crater Edge Dunes Grand Reef Grassy Plateaus Kelp Forest Mountains Mushroom Forest Safe Shallows Sea Treader's Path Sparse Reef Underwater Islands
Above Sea Level	Floating Island Mountain Island
Caves	Blood Kelp Caves Bone Fields Caves Bulb Zone Caves Deep Grand Reef Deep Sparse Reef Dunes Caves Grand Reef Caves Grassy Plateaus Caves Inactive Lava Zone Jellyshroom Cave Kelp Forest Caves Lava Lakes Lost River Mountains Caves Mushroom Forest Caves Safe Shallows Caves Sea Treader's Tunnel Caves Underwater Islands Caves
Mini-Biomes	Crash Zone Mesas Inactive Lava Zone Corridor Lava Castle Lava Geyser