Upper Caves

	Upper Caves;
There is an intricate network of cave tunnels below, above and all around the Underrail metro system.
Major location information
Music	Subterra
Located in	Around Lower Underrail
Areas	Upper Caves
Connections	Lower Underrail (multiple exits) ; GMS compound level 1 ; Lost Vault ; Hanging Rat bar ; Bunker (Upper Caves) ; Hephaestus Research
NPCs	Milton
Technical
Map file(s)	lux-a1, lux-a2, lux-a3, lux-a4, lux-a5, lux-a6, lux-a6x lux-a7, lux-a8, lux-a9, lux-a10, lux-a11, lux-a12 ; lux-b3, lux-b4, lux-b5, lux-b6, lux-b7, lux-b8, lux-b10, lux-b12, lux-b13, lux-b14, lux-b15, lux-b16, lux-b17, lux-b18, lux-b19 ; lux-c1, lux-c2, lux-c3, lux-c4, lux-c5, lux-c6, lux-c7

Upper Caves or Metro Caves are the caves directly connected to Lower Underrail, far above both Lower Caves and Deep Caverns.

Description

Some wall breaches in Lower Underrail lead to these adjoining caverns. They are inhabited mostly by various wildlife and largely devoid of human life, except the occasional bandit camp here and there. Ruins of old military facilities can be found even in these caverns, despite them not being directly connected to Lower Underrail's systems.

Enemies

All sorts of critters reside in these caverns, and few humans can be occasionally met.

Critters: Rathounds, Rathound Alphas, Pigs, Warthogs, Azuridae, Dogs, Burrower Spawn, Burrowers, Crawlers, Siphoners

Lunatics: Lunatic Gunners (lvl10), Lunatic Scanners

Lurkers: Lurker Smugglers

Quests

Milton's Key

Part A

This part of Upper Caves is initially accessible for the most part. They area near the South Gate area. Some passages must be opened with TNT Charges.

Upper Caves A1

The north exit leads to area Upper Caves A2
The southeast stairs lead to Lower Underrail, area Lower Underrail A4
Is inhabited by some Pigs and Warthogs
Has several respawning Cave Ears
Has a respawning Mindshroom
The rubble in the NW corner contains a Trilobite Fossil oddity, 1XP

Upper Caves A2

The west exit leads to area Upper Caves A3
The north exit leads to area Upper Caves A4
The south exit leads to area Upper Caves A1
Is inhabited by a few Azuridae
Has some respawning Lake Mushrooms
The door to the boxes requires 35 Lockpicking
The box behind the door contains an Encyclopedia Fragment oddity, 1 XP
Can be fished in this area: Minihead, Demon Squid, Blue Eel

Upper Caves A3

The east exit leads to area Upper Caves A2
The north exit leads to area Upper Caves A8
Is inhabited by several Rathounds and a Rathound Alpha in the building
The box near the dead man inside requires 50 Hacking
The shelves in the northeast room contains a Strange Comm Device oddity, 1 XP
Brno LMG unique LMG can be found here, mounted on a quad inside the building
You can raise the gate with 9 effective Strength

Upper Caves A4

The south exit leads to area Upper Caves A2
The west exit leads to area Upper Caves A8
The north exit leads to area Upper Caves A5
The east exit leads to area Upper Caves A9
has some roaming Cave Hoppers
Has 1 respawning Lake Poppy
Has 1 respawning Mindshroom
Has 2 respawning Lake Mushrooms
Cannot fish in this area

Upper Caves A5

The south exit leads to area Upper Caves A4
The west exit leads to area Upper Caves A6
The north exit leads to area Upper Caves A11
The east exit leads to area Upper Caves A10

Upper Caves A6

The south exit leads to area Upper Caves A8
The north exit leads to area Upper Caves A6x
The west exit is blocked by destructible rocks, which lead to GMS Compound area GMS Compound - Cave
Is inhabited by a Lurker Gunner and Lurker Cut-Throat
Has 1 respawning Mindshroom
Has some Red Dream Mushrooms, Mindshroom and Cave Ears
Can be fished in this area: Slackjaw, Blue Eel, Yellow Puckerfish, Minihead

Upper Caves A6x

The south exit leads to area Upper Caves A6
The west exit leads to Upper Caves B2
The east exit leads to Upper Caves A5
Is inhabited by several (6-7) stealthy Crawlers
Has some Lake Mushrooms and Cave Ears
Can be fished in this area: nothing

Upper Caves A7

The northeast exit leads to Lower Underrail, area Lower Underrail B6
The southeast exit is blocked by destructible rocks, which lead to area Upper Caves A8
Is inhabited by Pigs and Warthog
A barrel in the northwest part contains a Scrapture oddity, 1 XP

Upper Caves A8

The west exit leads to Upper Caves A7
The north exit leads to Upper Caves A6
The east exit leads to Upper Caves A4
The south exit leads to Upper Caves A3
Is inhabited by Pigs and Warthog

Upper Caves A9

The west exit leads to Upper Caves A4
The north exit leads to Upper Caves A10
The east exit leads to Upper Caves A12
Is inhabited by Rathounds and Rathound Alphas
The dead man in the center carries a Footlocker key (Caves)
Near the dead man is a secret passage requiring 7 Agility
- The secret passage has a respawning Mindshroom

Upper Caves A10

The north exit leads to Upper Caves A11
The south exit leads to Upper Caves A9
The west exits lead to Upper Caves A4
has some roaming Cave Hoppers
Has 1 respawning Mindshroom
Has 1 respawning Lake Mushroom
There's a bridge crossing the river north-south that can be spotted with enough Perception
A hole in the SE corner is protected with a Crawler Poison Bear Trap. It contains a crossbow and some ammo
Cannot fish in this area

Upper Caves A11

The southwest exit leads to Upper Caves A5
The southeast exit leads to Upper Caves A10
The north exit leads to Upper Caves B4
Milton is in the NE caves and offers the quest Milton's Key
- The footlocker requires 55 Lockpicking and contains a Laser Pistol and some batteries
The north exit is separated from the rest of the area by some Destructible rocks

Upper Caves A12

The west exit is blocked by destructible rocks, which lead to area Upper Caves A9
The east exit leads to Lower Underrail area Lower Underrail A7
Is inhabited by Burrowers and Spawns

Upper Caves A1, connects to south Lower Underrail (A4)
Upper Caves A2
Upper Caves A3
Upper Caves A4
Upper Caves A5
Upper Caves A6, connects to GMS compound
Upper Caves A6x, connects to Hephaestus Research
Upper Caves A7, connects to northwest Lower Underrail (B6)
Upper Caves A8
Upper Caves A9
Upper Caves A10
Upper Caves A11, Milton's camp
Upper Caves A12, connects to east Lower Underrail (A7)

Part B

This part of Upper Caves becomes accessible once the player has TNT Charges or Jackhammer. If entering from Lower Underrail, they are located north of Rail Crossing train station. If entering through other Upper Caves, they are north of Milton's camp.

Upper Caves B16

The south exit leads to Upper Caves B15
The west exit leads to Upper Caves B14
Ironheads have a small camp here
There is a hidden stash in NW corner of map through the backside of the camp, contains a Jumping Bean and random tabi boots, requires 10 effective Perception
Footlocker in the camp contains MG3-42 unique LMG

Upper Caves B3 (north of Hephaestus Research)
Upper Caves B4, crossroads
Upper Caves B5, Smugglers
Upper Caves B6
Upper Caves B7, lake
Upper Caves B8 (west of Lost Vault)
Upper Caves B10, rathounds
Upper Caves B12, Bunker entrance
Upper Caves B13, pool, crawlers
Upper Caves B14, pigs
Upper Caves B15, rathounds
Upper Caves B16, Ironhead camp
Upper Caves B17, river
Upper Caves B18, pigs
Upper Caves B19, river
Upper Caves B20
Upper Caves

Part C

This part of Upper Caves is further north, approximately underneath Foundry's northern side and east of Core City.

Upper Caves C1
Upper Caves C2
Upper Caves C3
Upper Caves C4
Upper Caves C5
Upper Caves C6, lunatics and climbable route up (leads to outside of Hecate Research Outpost)
Upper Caves C7