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Borderlands 4: Grindstone of the Worthy Collectible Locations

Your complete guide to finding all 15 collectibles in the Grindstone of the Worthy area of Borderlands 4

Grindstone of the Worthy contains 15 Collectible Locations in Borderlands 4. The Collectibles are revealed on the map when going near them. Then you can mark them on the map to be guided to their location.

Type

Vault Hunter's Guide to Kairos: 1

Type

ECHO Logs: 6

Type

Dead Bolts: 2

Type

Electi Safes: 2

Type

Propaganda Speakers: 2

Type

Vault Symbols: 2

Borderlands 4 Grindstone of the Worthy Collectibles Guide

1 – Dead Bolt

Borderlands 4 Dead Bolt location in Grindstone of the Worthy

This Dead Bolt is located in the western section of Grindstone of the Worthy, near the abandoned mining equipment. Look for it tucked behind a broken conveyor belt.

Tip: Use your Echo-2 device to detect the electromagnetic signature of Dead Bolts from a distance.

2 – ECHO Log

Borderlands 4 ECHO Log location in Grindstone of the Worthy

Find this ECHO Log in the central cavern area, resting on a crate near the Crimson Raiders outpost. It contains valuable intel about the area's history.

Note: ECHO Logs often provide background story and sometimes clues to other collectibles.

3 – Dead Bolt

Second Dead Bolt location in Grindstone of the Worthy

The second Dead Bolt is hidden in the eastern mining tunnels. You'll need to complete a simple platforming section to reach it behind a waterfall of acidic sludge.

Warning: The area is patrolled by aggressive skags, so come prepared for combat.

4 – ECHO Log

Borderlands 4 second ECHO Log location

Located in the upper cliffs area, this ECHO Log is sitting on a makeshift table in a bandit camp. Clear the area of enemies first to collect it safely.

Strategy: Use a sniper rifle to pick off enemies from a distance before moving in.

5 – Vault Symbol

Vault Symbol location in Grindstone of the Worthy

The first Vault Symbol is carved into the rock face in the northern part of the map. You'll need to climb up several ledges to reach it.

Climbing Tip: Look for yellow paint marks that indicate climbable surfaces.

6 – Electi Safe

Electi Safe location in Borderlands 4 Grindstone of the Worthy

This Electi Safe is hidden in a small cave behind a destructible wall. Look for cracks in the rock formation southwest of the central fast travel station.

Loot: Electi Safes typically contain high-quality weapons and gear.

7 – Electi Safe

Second Electi Safe location in Grindstone of the Worthy

The second Electi Safe requires completing a simple puzzle involving three pressure plates. Step on them in the correct order to reveal the safe.

Puzzle Solution: The order is indicated by numbered markings on nearby walls.

8 – Propaganda Speaker

Propaganda Speaker location in Borderlands 4

This Propaganda Speaker is mounted high on a tower in the bandit settlement. Shoot it down to add it to your collection.

Combat: Be prepared for enemies to swarm you after destroying the speaker.

9 – ECHO Log

Third ECHO Log location in Grindstone of the Worthy

Located in the underground processing facility, this ECHO Log is on a desk in the foreman's office. You'll need to defeat a mini-boss to access the area.

Boss Tip: The foreman is vulnerable to corrosive damage.

10 – Vault Hunter's Guide to Kairos

Vault Hunter's Guide to Kairos location

This unique collectible is found in the ancient ruins area. Solve the elemental puzzle by shooting the correct symbols in order to unlock the chamber.

Puzzle Hint: The solution is revealed in environmental clues throughout the ruins.

11 – Vault Symbol

Second Vault Symbol location in Grindstone of the Worthy

The second Vault Symbol is hidden behind a waterfall in the southern jungle area. You'll need to swim through an underwater tunnel to reach it.

Oxygen: Watch your oxygen meter while navigating the underwater section.

12 – Propaganda Speaker

Second Propaganda Speaker location

The final Propaganda Speaker is mounted on a moving vehicle that patrols the eastern road. You'll need to stop the vehicle or shoot the speaker from a distance.

Vehicle Tip: Shooting the tires will make the vehicle stop temporarily.

13 – ECHO Log

Fourth ECHO Log location in Grindstone of the Worthy

This ECHO Log is found in the toxic caves, protected by a powerful creature. Defeat the enemy to claim your prize.

Elemental Advantage: Use fire-based weapons against the creature for increased damage.

14 – ECHO Log

Fifth ECHO Log location in Borderlands 4

Located at the highest point in Grindstone of the Worthy, this ECHO Log requires using a series of jump pads and platforms to reach.

Platforming: Time your jumps carefully to avoid falling and having to start over.

15 – ECHO Log – from Side Mission: Her Own Funeral

Final ECHO Log from Her Own Funeral side mission

This final ECHO Log is obtained by completing the side mission "Her Own Funeral." The mission becomes available after reaching level 25 and talking to the grieving NPC near the central town.

Mission Reward: In addition to the ECHO Log, you'll receive a unique weapon as a reward.

Borderlands 4 Grindstone of the Worthy Video Guide

Watch this video guide for a visual walkthrough of all collectible locations in Grindstone of the Worthy.

Borderlands 4 Collectible Hunting Tips

General Tips

  • Upgrade your Echo-2 device to detect collectibles from further away
  • Complete side missions first, as some collectibles are locked behind them
  • Use vehicles to cover large distances quickly between collectible locations
  • Return to areas after gaining new abilities that might help access hidden spots

Rewards

  • Finding all collectibles in an area often unlocks unique cosmetics
  • Completing sets of collectibles grants bonus experience points
  • Some collectibles provide permanent stat boosts when found
  • Vault Symbols contribute to unlocking special end-game content