The Grymforge is an area in Baldurs Gate (BG3) and is found in the Underdark where you'll find the Adamantine Forge. It also contains one of the passages to the Moonrise Towers. Read on to view the maps of the Grymforge and the Adamantine Forge, and to find out all the points of interest in these areas.

Grymforge Maps

Grymforge

Adamantine Forge

Grymforge Abandoned Refuge Map

The northern part of the Grymforge is the Abandoned Refuge, where you'll find True Soul Nere, the druegar soldiers cooperating with him, and the gnomes that they have enslaved.

Note that the Grymforge has higher floor areas; these are indicated in the map above with the asterisk beside the point of interest.
How to Get to the Grymforge

Adamantine Forge Map

The Adamantine Forge is the area where you can forge Adamantine Items. This area is guarded by the boss enemy, Grym.

From the northern Grymforge, you can reach the Adamantine Forge by going through the Sturdy Cave-In, then passing through the bridge filled with fire traps and riding the lever-operated floating platforms. There's also shortcuts that you can take by using spells like Misty Step.

How to Find the Adamantine Forge

Grymforge Points of Interest

Grymforge Points of Interest

Grymforge Waypoint Entrances 　・Elevator to Shadow-Cursed Lands 　・Boat to Underdark 　・Sturdy Cave-In 　・Medium Toughness Cave-In 　・Double Iron Doors Beings of Interest 　・Nere 　・Sergeant Thrinn 　・Corsair Greymon 　・Elder Brithvar 　・Stonemaster Kith 　・Philomeen Valuables 　・Fetish of Callardulan Smoothhands 　・Heavy Chest: The Real Sparky Sparkswall 　・Harper Stash Grymforge Upper Area 　・Trap Bridge 　・Lever-Operated Platforms 　・Wrought-Iron Gate (Trap Bridge) 　・Gilded Chest: The Protecty Sparkswall 　・Opulent Chest: Firestoker Adamantine Item Moulds 　・Longsword Mould 　・Shield Mould 　・Scimitar Mould 　・Splint Mould

Grymforge Waypoint

Grymforge Waypoint
Coordinates: (-645, 379)

The Grymforge Waypoint is located just near the boats. Upon first arriving in the area coming from the main Underdark area, you'll find this waypoint immediately.

Entrances

Elevator to Shadow-Cursed Lands

Elevator to Shadow-Cursed Lands
Coordinates: (-600, 381)

The Elevator to the Shadow-Cursed Lands is located east from the waypoint, located behind the Wrought-Iron Gate.

Make sure to have all your quests done for Act 1 before entering this passage, since riding this elevator begins Act 2 and will cancel many of your Act 1 quests.

How to Get to the Shadow-Cursed Lands

Boat to Underdark

Boat to Underdark
Coordinates: (-635, 408)

The Grymforge can be reached by riding the Underdark Druegar Boat; you can ride this back to return to the main Underdark area. You can also ride the other boat nearby, the Zurkhwood Skiff, to do the same.

Sturdy Cave-In

Sturdy Cave-In
Coordinates: (-674, 447)

There are two cave-ins in the Grymforge; the northern one has Sturdy toughness, meaning it can be destroyed with only at least 10 HP damage.

You'll find a bunch of druegars forcing a couple of Rothes to destroy this wall. You can order the Rothes to join you in battle against the druegar, order them to destroy the wall, or attack the Rothes yourself. Whichever you do, it will end up with the druegar attacking you.

Behind this cave-in, you'll find the way up to the upper area of the Grymforge.

Medium Toughness Cave-In

Medium Toughness Cave-In
Coordinates: (-634, 309)

The other cave-in in the Grymforge is located south; this one has Medium Toughness, meaning it can only be destroyed with at least 20 HP damage. Nere is located behind this cave-in, slwoly dying to the poison gas inside.

This one is a bit more difficult to destroy; you likely won't be able to destroy it yourself. There are areas in the Grymforge that you can get explosives to destroy this cave-in, such as using the Runepowder Vial from Philomeen, or the Smokepowder Bombs in the Smokepowder Reserve.

Double Iron Doors

Double Iron Doors
Coordinates: (-602, 409)

There's a locked Double Iron Doors entrance in the lower area near the boats; behind this door is the long path full of doors and enemies, leading to Philomeen's Hiding Spot.

Beings of Interest

Nere

Nere
Coordinates: (-644, 302)

The evil drow, True Soul Nere, can be found behind the Cave-In in the south area. Freeing him is a timed event; leaving the area or taking a Long Rest before freeing him will likely cause him to die behind the cave-in. If you free him, you'll have to choose between fighting him or letting the enslaved gnomes die.

Defeating him is a necessary action to finish the quest given by the Myconid Sovereign to bring Nere's Head to them, as well as freeing the enslaved gnomes.

You can also loot a Mind Flayer Parasite Specimen from him, as well as the very rare Disintegrating Night Walkers equipment.

Deliver Nere's Head: How to Beat Nere

Sergeant Thrinn

Sergeant Thrinn
Coordinates: (-634, 311)

Sergeant Thrinn is the leader of the druegar in the Grymforge. If you've gotten the Boots of Speed from Thulla in the Ebonlake Grotto, delivering it to her will finish the Find the Missing Boots quest. She'll give you a reward of your choice between the Bracing Band and the Armour of Uninhibited Kushigo

If you didn't trick Nere into killing her, she'll fight with Nere.
How to Get Boots of Speed

Corsair Greymon

Corsair Greymon
Coordinates: (-630, 327)

Corsair Greymon is the leader of the druegar that confronts you on your boat while you're sailing to the Grymforge. If you didn't kill him there and sailed peacefully, he will go near the area where Nere is and will be available as a trader, selling a few rare and uncommon weapons.

Corsair Greymon will fight with Nere if you decide to fight him.

Elder Brithvar

Elder Brithvar
Coordinates: (-626, 355)

Elder Brithvar is a druegar that aims to rebel against Nere and Thrinn. You'll have to convince him to ally with you; he'll task you with killing the Scrying Eye floating nearby.

If you did what he asks, he'll ally with you in the confrontation against Nere. There are many other rebels nearby who'll join him in helping you fight Nere's forces. Otherwise, he and his fellow rebels will join to attack you instead.

If you sided with him and defeated Nere, you can convince him to release the gnomes in the Grymforge.

Save the Grymforge Gnomes

Stonemaster Kith

Stonemaster Kith
Coordinates: (-660, 375)

Stonemaster Kith is a druegar trader located near some rubble. If you pass the checks in helping him investigate, he'll give you an Infernal Alloy. If you didn't pass the checks, you can still purchase it from him; it will be in his trader inventory.

Philomeen

Philomeen
Coordinates: (-526, 463)

Deep into the northeastern area of the Underforge, across many locked rooms and some enemies, you'll find Philomeen in her hiding spot. If you haven't gotten a quest to find her or if your conversation with her goes badly, she'll blow herself up and will likely kill you and your whole party.

Otherwise, if you pass the checks while talking to her, she'll give you the Runepowder Vial, which can blow up the Cave-In that trapped Nere.

Valuables

Fetish of Callardulan Smoothhands

Fetish of Callardulan Smoothhands
Coordinates: (-610, 410)

The Fetish of Callardulan Smoothhands is a rare ring that can be gotten from one of the gnome corpses being thrown by the two druegar near the coast, Brathwen and Viss. You can trick them into leaving, letting you steal the ring from one of the corpses before continuing, or just attacking them.

Don't wait too long before trying to get the ring. If they manage to throw the corpse containing the ring into the water, you won't be able to get it anymore.

Fetish of Callarduran Smoothhands

Heavy Chest: The Real Sparky Sparkswall

Heavy Chest: The Real Sparky Sparkswall
Coordinates: (-693, 418)

Located northwest of the area, after jumping through some cliffs, you'll find a trapped and locked Heavy Chest. This contains the Real Sparky Sparkswall, an uncommon shield.

How to Get The Real Sparky Sparkswall

Harper Stash

Harper Stash
Coordinates: (-698, 372)

There's a Harper Stash in the western part of the area, behind some cliffs. At first, you'll see only three Chests; be careful as these aren't real chest and are actually Mimics who will attack you if you interact with any of them.

Find the tiny Toy Chest in the area tor reveal the Harper Stash chest. This chest contains a few gold and valuables inside.

Grymforge Upper Area Points of Interest

Trap Bridge

Trap Bridge
Coordinates: (-647, 380)

Behind the Sturdy Cave-In in the northwest part of the Grymforge area, you can go up to the higher areas of the Grymforge. The first one you'll encounter is a bridge, which is riddled with trap panels all across it. Stepping on any of these traps will trigger all the fire traps throughout the bridge.

You can disarm these panels or fire traps, but there are a lot of them so it isn't worth the effort. It's easier to just jump across these traps; make sure to ungroup your party so they don't accidentally walk into any traps.

In the middle of this bridge, you'll find a ladder going down to where the lever-controlled platform is. At the end of the bridge, you'll find the Wrought-Iron Gate; behind this, you'll find the lever that disable all the traps in the bridge.

Lever-Operated Platforms

Lever-Operated Platforms
Coordinates: (-638, 410)

In the middle of the trap bridge, you can descend into a ladder that leads to a couple of levers and a platform nearby. These levers operate the platform, either being forward-backward, or higher-lower. You'll have to ungroup your party, have one operate the lever, while the others ride the platform to where you want them to go.

There's a second lever-operated platform at the end of the very long floating bridge. The levers for this one are located east, in another area in the upper floors.

At the end of this platform, you'll arrive in the Adamantine Forge area; you can activate the waypoint here and have the ones left behind to operate the levers to teleport to this waypoint and rejoin your party.

Wrought-Iron Gate (Trap Bridge)

Wrought-Iron Gate (Trap Bridge)
Coordinates: (-653, 370)

The Wrought-Iron Gate is located at the other end of the trap bridge. This can't be lockpicked, and you'll have to think of other ways to get behind the gate.

One of the ways is using Misty Step to get behind the gate. It might not work immediately, so you'll have to find the correct position and camera rotation to find the spot you can Misty Step into.

Behind this gate, you'll find the lever that disables the traps in the Trap Bridge and opens the gate, an Idol of Shar which is an item of interest for Shadowheart, and a Gilded Chest.

Gilded Chest: The Protecty Sparkswall

Gilded Chest: The Protecty Sparkswall
Coordinates: (-645, 360)

Behind the Wrought-Iron Gate, you'll find a Gilded Chest. This chest contains the rare The Protecty Sparkswall armor.
How to Get The Protecty Sparkswall

Opulent Chest: Firestoker

Opulent Chest: Firestoker
Coordinates: (-577, 383)

In the upper floors, across the lever-operated platform, you'll find a room with Hellbeasts. In this room, you'll also find an Opulent Chest, which contains the uncommon Firestoker weapon.

How to Get Firestoker

Adamantine Item Moulds

Longsword Mould

Longsword Mould
Coordinates: (-625, 404)

The Longsword Mould allows you to forge the Adamantine Longsword in the Adamantine Forge. It is on a floating bridge that you can get to by operating the first lever-operated platform.
How to Get Adamantine Longsword

Shield Mould

Shield Mould
Coordinates: (-557, 411)

The Shield Mould allows you to forge the Adamantine Shield in the Adamantine Forge. It is on a skeleton in a room in the eastern part of the upper floors.
How to Get Adamantine Shield

Scimitar Mould

Scimitar Mould
Coordinates: (-606, 324)

The Scimitar Mould allows you to forge the Adamantine Scimitar in the Adamantine Forge. It is on a skeleton beside the second set of levers in the upper floors.
How to Get Adamantine Scimitar

Splint Mould

Splint Mould
Coordinates: (-597, 309)

The Splint Mould allows you to forge the Adamantine Splint Armour in the Adamantine Forge. It is located in a tiny area northeast of the Ancient Forge waypoint, near one of the Mithral Veins.
How to Get Adamantine Splint Armour

Adamantine Forge Points of Interest

Grymforge Points of Interest
Adamantine Forge Ancient Forge Waypoint Grym Mithral Veins: Mithral Ore 　・East Mithral Vein 　・West Mithral Vein Adamantine Item Moulds 　・Mace Mould 　・Scale Mail Mould Lava Elemental Adamantine Chest: Sentient Amulet

Adamantine Forge

Adamantine Forge
Coordinates: (-558, 231)

The Adamantine Forge is where you can forge Adamantine items. It has a chamber that will hold a mould, and a crucible that will hold the Mithral Ore.

There's a lever that brings down the hammer and lowers the platform the first time you do it, and a wheel that activates the Lava Valve and summons the Grym boss the first time you activate it.
How to Activate the Adamantine Forge

Ancient Forge Waypoint

Ancient Forge Waypoint
Coordinates: (-611, 294)

South of the main Grymforge area, north of the Adamantine Forge, you'll find the Ancient Forge Waypoint.

You can get here by going through the upper area of the Grymforge across the floating lever-operated platforms, but you can take a shortcut and get to the southmost point that you can get and use a spell to get across, like Misty Step.

Grym

Grym
Coordinates: (-546, 238)

When you first use the Adamantine Forge, you'll encounter Grym, an extremely powerful boss.

It can only be damaged when it is heated, meaning that after the lava gets drained, you'll have to reactivate the Lava Valve after a few turns. You can also lure it to the hammer in the middle and activate it, dealing a huge amount of damage.

It will drop the Very Rare Grymskull Helm equipment upon defeat.
How to Beat Grym

Mithral Veins: Mithral Ore

Before you can get forging, you'll need some Mithral Ore first, which you have to slot in the Forge's Crucible. The Mithral Ore can be mined inside the Mithral Veins; there are two of them in the game, both located in the Grymforge, meaning you can only have two Adamantine items in a playthrough.

East Mithral Vein

East Mithral Vein
Coordinates: (-554, 277)

This Mithral Vein is located southeast of the Ancient Forge Waypoint, near the stairs leading to the forge, in an area with bookshelves. Along the way, you'll encounter a group of Magma Mephits that will ambush you in a surprise attack.

West Mithral Vein

West Mithral Vein
Coordinates: (-646, 254)

This Mithral Vein is located southwest of the Ancient Forge Waypoint, in a named location called the Ancient Temple. You might have to fight the group of Animated Armor enemies along the way.

Adamantine Item Moulds

Mace Mould

Mace Mould
Coordinates: (-613, 283)

The Mace Mould allows you to forge the Adamantine Mace in the Adamantine Forge. It is located on a table near the Ancient Forge Waypoint.

Scale Mail Mould

Scale Mail Mould
Coordinates: (-617, 264)

The Scale Mail Mould allows you to forge the Adamantine Scale Mail in the Adamantine Forge. It is found on the ground near the group of Animated Armor, southwest of the waypoint.

Lava Elemental

Lava Elemental
Coordinates: (-608, 222)

The Lava Elemental is a strong enemy patrolling the southwest area of the Adamantine Forge. It heals when it's on magma, so try to lure it in the areas where there's no magma. When you defeat it, the magma eruptions in the area will stop.

Adamantine Chest: Sentient Amulet

Adamantine Chest: Sentient Amulet
Coordinates: (-628, 222)

In the area being patrolled by the Lava Elemental, you'll find the Adamantine Chest.

Inside, you'll find the Sentient Amulet, an accessory possessed by a spirit tied to the Help the Cursed Monk quest.
How to Get Sentient Amulet

Baldur's Gate 3 Related Guides

Faerûn All Maps and Locations

Faerûn All Locations

Prologue Locations
Nautiloid
Act 1 Locations
Wilderness	Chapel Ruins
Emerald Grove	Owlbear Nest
Blighted Village	Whispering Depths
Putrid Bog (Sunlit Wetlands)	Overgrown Tunnel
The Risen Road	Zhentarim Basement
Goblin Camp	Mountain Pass: Rosymorn Monastery
Creche Y'llek	Underdark
Arcane Tower	Grymforge
Act 2 Locations
Shadow-Cursed Lands	Reithwin Town