All Auger Mine Legendary Loot & Bosses in Borderlands 4

There are a total of 7 Abandoned Auger Mines in Borderlands 4, with each of the main locations having at least 1 to explore. Auger Mines are filled with creatures that lurk within Kairos, and those who wish to be pest exterminators can venture into these caves and explore them to their end, where they will be met with a deadly boss fight. Below, we've listed all Auger Mines in Borderlands 4, along with the boss present, and the Legendary loot thatroac they can drop, so you know exactly which fight you want to farm for the epic loot that will make your build a true powerhouse against the villains of Kairos, and the envy of all other Vault Hunters.

Timid Kyle's Neglected Opening

How to Beat Voraxis

• Location: Coastal Bonescape, The Fadefields

The most accessible Auger Mine is found within the first area of the map, the Fadefields. Players can venture north from the Old Safehouse in Coastal Boenscape to find this cave entrance, which has a rather ominous red glow to it. Avoid jumping into the tempting hole, and instead, loop to the right to find the cavern entrance. Follow through the caverns and avoid those pesky Threshers to find the boss at the end, which is Voraxis. Voraxis is another Thresher, but this hulking beast will swim through the dirt, attempting to jump up and surprise you with deadly bites and charges. This enemy only has 1 Flesh bar, so Incendiary damage is great for taking it out (whenever it decides to show its head).

The Claim

How to Beat The Backhive

• Location: Dissected Plateau, The Fadefields

Within the west region of Dissected Plateau in the Fadefields, players can find The Claim. This cave is located next to Zadra's secret hideout, so try to complete a few main story missions until at least after you get to A Lot to Process, which is around the 4th main mission. Head deeper into the cave to find The Claim, and fans of the series up to this point might recognise familiarity with the boss as not a Rakkhive, but a Backhive. The Backhive is a giant beast where Kratch enemies will spawn from its back. With a near-impenetrable hide, players are going to want Incendiary rounds to burn through this beast's single Flesh health bar. Just be mindful of its stomping legs and the fierce bombing Kratch that will emerge.

The Pigeonhole

How to Beat Skull Orchid

• Location: Grindstone of the Worthy, Carcadia Burn

The first Auger Mine players will find in Carcadia Burn is within Grindstone of the Worthy, which faces a south wall close to Dominion. Entering into Pigeonhole won't be a difficult experience, unless players are fairly creeped out by the Creeps that have made their nest here. To make matters worse, the boss fight is a Creep, and one who can randomly change elements to counter your damage elemental types. The same principle applies here, as Skull Orchid will have a Flesh health bar, which is easily destroyed with Incendiary weapons. For a weakspot, aim for Skull Orchid's tendrils that hang from its mouth, as its bulky eyes and bulbous head are actually protected by its shell.

Trinket Crevass

How to Beat Rocken Roller

• Location: Ruined Sumplands, Carcadia Burn

In the north region of Carcadia Burn, players can head to the Ruined Sumplands where, just beside a cliff, is an entrance to a deeper cave. Heading through the cave, players are going to find a rolling menace called Rocken Roller. Rocken Roller is the boss of Trinket Crevass, and his first health bar is a regenerating Vile one. This means that players must destroy the crystals adorning his body if they wish to deal damage to his Flesh health bar. The Vile bar does return after some time, so be sure to be quick with damage and use Incendiary rounds to exploit his weakness. Rocken Roller isn't too much of a threat, so long as you stay jumping and far from this rolling threat.

Whistler's Maw

How to Beat Shadowpelt

• Location: Cuspid Climb, Terminus Range

Within the center of Cuspid Climb in Terminus Range, players can find the Whistler's Maw cave. This cave is relatively simple to navigate through, albeit with the monstrous Manglers that lurk within. However, the true threat is from the boss, Shadowpelt, who can be an unrelenting menace to fight. Shadowpelt starts with a Shield bar, so bring a Shock weapon to destroy it. However, Shadowpelt's Shield bar will regenerate itself, and when it does, he becomes completely invisible, relying on flanking attacks and electric orbs to shock you to death. Simply use Shock weapons to destroy his shields and then an Incendiary weapon to burn him to a crisp, over and over again, to claim his loot.

Bittervein

How to Beat Bramblesong

• Location: Stoneblood Forest, Terminus Range

In the far north region of Stoneblood Forest of Terminus Range, players will be able to locate the Bittervein Auger Mine, which houses an abundance of festering Kratch enemies. The cave itself is perhaps the most confusing to navigate, as elevating platforms require a mastery of jumps, mid-air dashes, and the ability to look up to locate grapple points. At the end of the cave system is Bramblesong, an oversized Kratch with 2 Flesh health bars, so bringing Incendiary to burn this flying monstrosity to a crisp is a must. In terms of damage, Bramblesong will shoot lasers from its tail and send out explosive Kratch units, so try to keep your distance from this winged beast.

The Toil of Spoiling Vis

How to Beat Axemaul

• Location: Carcadia District, Dominion

The Toils of Spoiling Vis is the only Auger Mine that players can find in Dominion, an area that unlocks in the latter half of Borderlands 4. To reach the Toils of Spoiling Vis, players should spawn in the Carcadia District of Dominion and follow the path left of the safehouse across the bridge, where they will see a cave opening amidst the rubble. Inside, players are going to be fighting Manglers as they explore deeper into the cave, where they will eventually enter Axemaul's boss room. Axemaul is a pretty fierce boss who has Armor as his first health bar, then Flesh as his second, so bringing Corrosive and Incendiary weapons is great for chipping away at this brutal axe-wielding Mangler's health.

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September 12, 2025

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Mature 17+ / Blood and Gore, Intense Violence, Sexual Themes, Strong Language, In-Game Purchases, Users Interact

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Gearbox Software

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2K

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