All Carcadia Burn Vault Fragments In Borderlands 4

TL;DR

  • Three Vault Fragments located across Lopside, Tonnage Peel, and Ruined Sumplands sub-zones
  • Order Silos reveal fragment locations and provide fast travel/vending machine access
  • Radix boss requires Shock weapons for shields and Corrosive weapons for armor
  • Navigation requires grappling and careful enemy avoidance in hazardous environments
  • Complete collection unlocks Vault of Radix with exclusive rewards


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Planning your expedition to secure every Carcadia Burn Vault Fragment in Borderlands 4? This expansive desert region presents a challenging environment with extreme temperatures, shifting sand dunes, and numerous abandoned outposts. Beyond the obvious landmarks lie concealed zones that demand thorough exploration to uncover.

The essential Vault Key Fragments you’re hunting are distributed across three distinct sub-regions: Lopside, Tonnage Peel, and Ruined Sumplands. Each area presents unique environmental hazards and enemy encounters. The region also contains several Order Silos that serve as crucial navigation aids. Once you establish control over these facilities, they reveal approximate fragment positions on your map. Additionally, these installations transform into valuable fast travel hubs equipped with vending machines for resupply.

Our detailed Borderlands 4 Vault Fragment guide for Carcadia Burn provides comprehensive location data. If you’re approaching from Fadefields, we recommend starting with the southernmost sector—Lopside—before progressing to the remaining zones. We’ve also included precise coordinates for the Vault of Radix entrance to streamline your endgame progression.

This initial fragment rests atop a One Pumper fuel station structure. It’s positioned adjacent to both Lost Capsule and Dead Bolt collectible items, allowing efficient multi-objective completion. The rooftop accessibility varies depending on your character’s mobility options—consider using grapple hooks or elevated approach paths.

Vault Fragment #1: Lopside

Pro Tip: Scan the surrounding area for additional loot containers, as gas stations often contain hidden ammunition caches and currency drops. Many players overlook these secondary rewards while focused solely on the primary objective.

Navigate to the central sector of this sub-zone, targeting the designated point-of-interest called the Wreck of the Last Great Hope. Employ glide or grapple mechanics to penetrate the damaged superstructure. Exercise caution around the indigenous Creep enemy types and locate the interior metal grate mechanism. Manipulating this barrier permits descent through an access shaft where the fragment awaits retrieval.

Vault Fragment #2: Tonnage Peel

Common Mistake: Players frequently underestimate the Creep population density inside the wreckage. Bring area-of-effect weapons or stealth capabilities to manage these threats efficiently. The descent shaft contains additional loot, so don’t rush the extraction process.

Interestingly, this final Vault Key Fragment sits beside a cluster of rock formations adjacent to a small pond. The aquatic feature provides a distinctive landmark for navigation, while the rocks offer partial cover during approach. This location typically has lighter enemy presence compared to the previous fragments.

Vault Fragment #3: Ruined Sumplands

Advanced Technique: Use the pond as a tactical advantage—some enemies have pathing issues around water features, creating safe engagement opportunities. The fragment itself is easily visible against the darker rock formations.

Once you’ve secured all Carcadia Burn Vault Key Fragments in Borderlands 4, you’ll gain access to the Vault of Radix. Reach this destination by following the northern roadway from Rusticarl Hurl Order Silo. The entrance occupies a cliffside position directly across from an active Ripper encampment.

Vault of Radix location

After completing the sequential wave defense encounters against standard enemy forces, you’ll confront the boss entity Radix. Prepare for multiple catastrophic attack patterns:

  • Health Composition – Radix possesses a protective shield (displayed as blue health bar), succeeded by durable armor (shown as yellow bar). Equip a Shock-based firearm and a Corrosive weapon to maximize damage output against these layered defenses.
  • Radix boss battle and rewards

    Combat Insight: Radix’s attack sequences follow predictable patterns after the initial phase. Study the telegraphing animations to identify safe positioning opportunities. The boss transitions between shield-dominant and armor-dominant phases, requiring weapon swapping for optimal performance.

    Action Checklist

    • Activate Order Silos to reveal fragment locations and unlock fast travel points
    • Collect Lopside fragment from gas station rooftop near other collectibles
    • Navigate Wreck of the Last Great Hope interior, avoid Creeps, and retrieve fragment from shaft
    • Locate Ruined Sumplands fragment beside pond rocks
    • Assemble fragments and conquer Radix boss with elemental weapon strategy

    No reproduction without permission:SeeYouSoon Game Club » All Carcadia Burn Vault Fragments In Borderlands 4 Complete guide to locating all Carcadia Burn Vault Fragments and defeating Radix in Borderlands 4