The Underbog Guide

30-second TL;DR

Adventure Guide says

• Coilfang Reservoir is the name for a naga-dominated compound that lurks under Zangarmarsh's deepest waters.
• The reservoir, punctured throughout by massive open pipes and pistons, seems big enough to house armies - and, yet, its purpose isn't strictly military.
• The Adventure Guide lists 4 encounters: Hungarfen, Ghaz'an, Swamplord Musel'ek, The Black Stalker.

At a glance

Type	Dungeon
Expansion	The Burning Crusade
Located in	Zangarmarsh
Entrance	Zangarmarsh 54.4, 34.4
Encounters	4
Journal abilities	21
Drops	102
Item level	30 to 32
Tradeable drops	0
Difficulties	Normal, Heroic, Timewalking

Encounters

Adventure Guide says

1Hungarfen

Unlike his ally, Quagmirran, the great fungal giant Hungarfen has thus far eluded enslavement by the naga. Nonetheless, he remains aggressive to all outsiders who tread into the deepest caverns of Zangarmarsh. Oblivious to the naga's machinations in other parts of the region, Hungarfen spends much of his time tending the Underspore, an ancient plant said to be his most prized possession.

Spore CloudFoul SporesAcid Geyser

Arcanium Signet BandsNHBoggspine KnucklesNHCassock of the LoyalNHGirdle of Living FlameNHHungarhide GauntletsNHLykul BloodbandsNH

16 drops · item level 30 to 32 · 5 slots (Hands, Legs, One-Hand, Waist, Wrist) · all Bind on Pickup

2Ghaz'an

Historians have long disagreed about whether the immense hydras of Azeroth and Outland share a common ancestor. What is clear, however, is that these ruthless creatures have existed on both realms since ancient times. Ghaz'an is one of the most infamous and fearsome hydras on Outland. Under the control of Lady Vashj, this ravenous fiend has stormed the lower reaches of Zangarmarsh to terrorize the region's denizens.

Acid BreathThrashTail SweepAcid Spit

Cloak of Healing RaysNHDunewind SashNHGirdle of GallantryNHGreatstaff of the LeviathanNHHatebringerNHHeaddress of the TidesNH

22 drops · item level 30 to 32 · 6 slots (Back, Finger, Head, Neck, Two-Hand, Waist) · all Bind on Pickup

3Swamplord Musel'ek

To be one of the Broken is to be an outcast. This truth weighs heavy on Swamplord Musel'ek. Although he is a member of the Murkblood Broken, he prefers to roam the caverns beneath Zangarmarsh alone. During one of these recent wanderings, he used his mastery over beasts to enthrall Windcaller Claw, a druid who had been exploring the area in the form of a ferocious bear. Musel'ek has forced Claw to act as a loyal companion who will not judge him for the twisted being he has become.

Raptor StrikeMulti-ShotDeterrenceKnock AwayShootCommand ClawMaulEchoing Roar

Armwraps of DisdainNHBogreaverNHCloak of Enduring SwiftnessNHCrown of the Forest LordNHGreaves of the Iron GuardianNHHands of the SunNH

22 drops · item level 30 to 32 · 10 slots (Back, Chest, Finger, Hands, Head, Legs +4 more) · all Bind on Pickup

4The Black Stalker

The marsh walkers of Outland are towering creatures that prowl the wilds, feasting on any lesser creatures they come across. The sporelings of Zangarmarsh tell tales concerning one of these predators, a particularly ruthless beast known as the Black Stalker. Broodmother to all marsh walkers, it is said she emerges from her lair deep in the Underbog only to satisfy her hunger for delicious sporelings.

LevitateStatic ChargeChain LightningLightning Bolt

Barkchip BootsNHEye of the StalkerNHStormsong KiltNHThe Black StalkNHAlembic of Infernal PowerNHArgussian CompassNH

42 drops · item level 30 to 32 · 13 slots (Chest, Feet, Finger, Head, Legs, Neck +7 more) · all Bind on Pickup

3D Model

First-party render from the game files. Model © Blizzard Entertainment.

Mounts, toys, achievements, transmog

Only rows the journal loot table or an achievement title can prove for this encounter.

Item sets and transmog

Doomplate Battlegear · Mana-Etched Regalia

Entrance and location

The Underbog entrance

The game data places the dungeon entrance for The Underbog in Zangarmarsh at map coordinates 54.4, 34.4. The The Underbog database page carries the raw journal and the full loot grid.

Player strategy

This page quotes the Adventure Guide. It does not add player strategy such as positioning, assignments, stack or spread calls, or cooldown timings unless that sentence is already in the journal.

Questions

Source and build

This page quotes the Adventure Guide. It does not add player strategy such as positioning, assignments, stack or spread calls, or cooldown timings unless that sentence is already in the journal. Quoted sections come from TheWoWDB Adventure Guide datamine (client build 12.1.0.69875, ingested 2026-09-18). Ability names link to first-party spell pages. When a newer retail build is ingested, this page updates with it.

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