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Saugus Ironworks is a location in the Commonwealth occupied by the Forged in 2287.


Once a historic pre–Revolutionary War ironworks, Saugus was reopened during the Sino-American War. The location is now run by Slag and his group, the Forged.[Non-game 1]


The location is a large multi-level ironworks factory, consisting of the main factory and a few smaller buildings on the roof and at ground level. The factory interior consists of metal floors and platforms and contains many vats of molten metal, which both emit light and deal massive damage to player characters not wearing power armor.

On the middle level, there is a room containing both a weapons workbench and an armor workbench, A terminal nearby can be used to activate a protectron that will engage the Forged in combat. On the top level behind an automated turret, there is a door to the blast furnace in which Jake Finch, Abraham's son, and Slag, are found. Opposite that door is a power armor station and a door to the roof.

A shortcut to the furnace area can be taken by walking up a steep pipe on the southern exterior of the building and entering through the door on the roof. The entrance to the blast furnace is locked with an Expert lock. There are multiple Forged and fragmentation mines on the roof. Engaging these Forged in combat may attract the Gunners on the nearby overpass. One of those Gunners, a captain named Bridget, may lob mini nukes into the fray.

Notable loot[]

Saugus Ironworks blast furnace map

Blast furnace map

  • Explosives bobblehead - Found in the blast furnace room on top of the control panel above the furnace.
  • Picket Fences issue #3 - Found in the blast furnace room, on the floor of the steel walkway right under the steamer trunk and the ammo box.
  • A Shishkebab - Looted from the power-armored Forged leader Slag, who resides in the blast furnace room, needed for the quest Out of the Fire.
  • Dampening coil - In the southeast corner of the blast furnace room, on the wall adjacent to the smelter on the ground level, as part of a large blue circular "button." Needed for the quest Here There Be Monsters.
  • An overdue book and a Day Tripper - Near the stairs in the southwest corner along the west wall on the ground level, located in the toppled smelting pot next to a skeleton and shopping basket that is found directly down the short stairs adjacent to the gun-trapped bathroom.
  • A Vault-Tec lunchbox - On the top floor of the first room. It is located just north of the far south wall, in an office nook.
  • Saugus roof key - On Slag, Jake Finch, and a Forged leader that replaces Slag once he is killed.
  • A Nuka-Cherry - Entrance area, in the southeast, next to some skeletons under the stairs.
  • Creation Club Heavy incinerator - In a partially tipped over crucible.
  • Creation Club Keeper's toolbox key - In a tin can above a designated toolbox. Opens toolbox.
  • Creation Club Smelter console password - In the above-mentioned toolbox. Gives access to the smelter terminal.
  • Creation Club Forged recruit's note - Note, in the same toolbox.

Related quests[]


  • Slag's terminal on the wall near his platform may contain notes about other raider strongholds that have been cleared by the player character before reaching the ironworks.
  • Upon defeating Slag, it is possible for him to fall into the molten steel, making his loot and the Shishkebab impossible to retrieve. The player can enter the molten steel and take only minimal damage while in power armor.
  • Upon defeating Slag, it is possible for him to fall on top of the Picket Fences magazine in such a way that the option to pick it up is not available. Due to the weight of his power armor frame, his body cannot be dragged to uncover the magazine. One can return in a few game days to find Slag replaced by a generic boss raider and should be able to acquire the magazine then.
  • Due to its proximity to the Slog, fast traveling to that settlement may cause its settlers and the nearby Forged to engage in combat.
  • When at this location, companions make comments, which are activated at two locations: near the huge tilted vat on the ground floor and at the entrance to the blast furnace.
Location comments
Character Specific location Comment
Cait "Awwww, look. The Raiders have themselves a little arts and crafts project."
"Oh, lovely. You got a can-opener?"
Codsworth "Careful, sir/mum. That heat isn't good for either of us."
"This place is just full of charm, isn't it?"
Curie "A working ironworks could be most useful for some of my plans."
"These criminals are heavily armored. Caution."
Danse "These Raiders have become annoyingly resourceful. We'll have to put a stop to that."
"Damn it... these Raiders are using Power Armor. Aim for the fusion core!"
Deacon "I'm all for saunas, but this is something else."
"Now the raiders got Power Armor. God damn it."
John Hancock "Uh, watch your step."
"Looks like someone heard we were coming."
Robert MacCready "Can someone crack a window? It's hot as hell in here."
"Hey look, it's the Brotherhood of Squeal! *Laughs*"
Nick Valentine "Didn't know my temperature sensors went this high."
"Hope you brought your can opener."
Piper Wright "How many Raiders are lost every year to safety hazards? Not enough, you ask me."
"I guess we wouldn't be lucky enough for him to just fall in one of these things, would we?"
Preston Garvey "What are these idiots playing at here?"
"We're going to need bigger guns."
X6-88 "Let's keep our distance from that machinery."
"Power armor. Recommend heavy armaments."


Saugus Ironworks appears only in Fallout 4.

Behind the scenes[]

Saugus Ironworks is a real world location of the same name, located northeast of downtown Boston in Saugus, Massachusetts.


  • PCPC Playstation 4Playstation 4 After the battle with Slag, the player character can become covered in bright orange molten metal during conversations and in third person view. An easy fix is to reload a save and get lit on fire again by the Forged, turning you back to normal. [verified]
  • PCPC Surviving an encounter with a container of molten metal may cause the game to equip your character with a permanent, unnamed gore item intended for NPCs killed in this fashion. Because the molten metal is intended to be a definitive death, the game immediately flags your character as dead and equips them with this default "molten death" appearance regardless of whether you survive or not. Essentially, you have a "death mesh" inside your character mesh which clips through in 3rd person view and obstructs the center of the screen when activating sneak mode. This can be solved via the console by using player.removeitem 0001e22e5. [verified]
  • PCPC A pair of raiders seem to spawn quite frequently near the bonfire outside Saugus Ironworks. They will occasionally wander into the bonfire and die. [verified]
  • PCPC If you exit the blast furnace during the boss fight with Slag, using explosives on Slag might cause his body to become stuck inside the metal cage on either side of the door going into the blast furnace. This means that you won't be able to loot Slag for his power armor or the Shishkebab. [verified]




  1. Fallout 4 Vault Dweller's Survival Guide Collector's Edition pp. 283-284: "[2.19] SAUGUS IRONWORKS
    Once a historic pre–Revolutionary War ironworks, this location was reopened during the ramp-up to provide materials for the war with China. The location is now run by Slag, a particularly ferocious Raider and his clan, the Forged."
    (Fallout 4 Vault Dweller's Survival Guide Map)