Order Silos are side activities in Borderlands 4 which serve as fast travel points of interest, but more importantly, can be used to generally mark the location of Vault Key Fragments on the map. With three Vault Key Fragments to be found in each major region on the rim of Dominion city, broken up between a Silo each, you would otherwise be hard pressed to find all of them just by exploration.
This Borderlands 4 guide is a complete listing of all Order Silo locations to be found in Kairos.
The Kit Hole
Fadefields region of South-western Kairos
The Howl
- South-west of Shut-Eye Keep Safehouse.
- North-east of Abandoned Post Safehouse.
Deep Seven
Fadefields region of South-eastern Kairos
Dissected Plateau
- South of Grey Havenage Safehouse.
- North-east of Someday Rise Safehouse.
- North of Wyclef’s Reprieve Safehouse.
The Stockroom
Fadefields region of South-western Kairos
Coastal Bonescape
- North-east of Abandoned Post Safehouse.
- South-west of Shut-Eye Keep Safehouse.
Deathright
Terminus Range region of North-eastern Kairos
The Low Leys
- North-west of The Nightcap Safehouse.
- North-east of Snowy Wells Safehouse.
Covered Charge
Terminus Range region of North-east of central Kairos
Cuspid Climb
- South-west of The Nightcap Safehouse.
- South-east of Snowy Wells Safehouse.
- North-west of Heritage Opus Safehouse.
The Reliquary
Terminus Range region of Eastern Kairos
Cuspid Climb
- South-east of Grey Havenage Safehouse.
- South-west of Heritage Opus Safehouse.
Judgment’s Lapse
North-western Kairos
Ruined Sumplands
- South-west of Wildhorn’s Beard Safehouse.
Site Unseen
North-western Kairos
Tonnage Peel
- North-west of The Lowrise Safehouse.
Rustical Hurl
North-west of central Kairos
Grindstone of the Worthy
- North-east of Makeshift Chalet Safehouse.
- South-east of The Lowrise Safehouse.
- North-west of both The Lockaway Safehouse and The Food Court Safehouse.
Those are all nine of the Silos to be discovered in Borderlands 4.