Borderlands 4: Shadow of the Mountain Walkthrough

Starting at Belton's Bore

To start the mission, head to Belton's Bore, located in the southern part of The Low Leys. Upon arriving, help the Augers kill the Order forces.

Speaking with Joyless Stellan

After killing the Order, speak to one of the Auger leaders, Joyless Stellan. He will then direct you to find Defiant Calder.

Locating Defiant Calder

From there, head southeast to The Lambent Mines in the eastern part of Cuspid Climb. You can use the Digirunner to drive to your destination.

Once you're in The Lambent Mines, the Defiant Calder will be under attack by Order forces. Help him and defeat them. Talk to the Defiant Calder afterward.

Setting Up Signal Beacons

In the first area, approach the force field to the north. Calder will ask you to take the signal beacons on the right side of the area and set them up on the power sources near the force field and on the bridge in the middle. Be careful, as you will be fighting enemies along the way!

Navigating the Circle Platform

With the force field down, continue through the mines going northwest until you reach a red-lit area with a circular platform above. Use your grappling hook to climb up and reach the next force field.

Second Area Signal Beacons

Place the first signal beacon near the stairs, then enter the door on the right to reach the room behind the red force field. A Pinhead will drop down as soon as you enter the room.

Go through the newly opened doorway and interact with the switch on the control panel to access the dig chamber.

Third Area Signal Beacons

Enter the door on the right and cross the dig chamber heading southwest. Climb up to the platform on the right to hack the first beacon. Proceed further and hack the second beacon near the next force field.

This will then lead you to an area with vending machines, giving you a chance to prepare before the boss fight against Skyspanner Kratch.

Boss Fight: Skyspanner Kratch

When you're ready, slide down the chute on the right and defeat Skyspanner Kratch.

This flying boss summons red balloon bombs that explode on impact and smaller Kratches that chase you. Take advantage of the open arena and stay mobile to avoid its attacks.

Accessing Calder's Office

After defeating Skyspanner Kratch, head northeast to Calder's office. Interact with the panel above the door to hack and open it.

After getting the relic, return to Belton's Bore and approach the Defiant Calder at the gate entrance.

Wait for the gate to open, then follow the Defiant Calder through the halls of Belton's Bore.