Welcome to our Borderlands 4: Terminus Range – Heart of the Mountain Area Guide! This walkthrough covers everything you need to fully complete the region, including all collectibles, activities, and hidden objectives. If you’re aiming for 100% completion, our step-by-step breakdown will help you track down every item and activity in the Borderlands 4: Terminus Range – Heart of the Mountain Area Guide.
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Terminus Range – Heart of the Mountain Area Guide

In the Heart of the Mountain, there are several items and activities to track down for 100% completion:
- Collectibles: 4 total
- Activities: 1 total
Heart of the Mountain Collectibles
ECHO Logs
Phone Home

This ECHO Log can be found underneath the bridge of the Sanctuary.

Pet Sitter

This ECHO Log can be found on the counter behind Moxxi’s bar.

The Path Forward

During the It’s a Whole Phase Situation side mission, you’ll enter a cave that you’ll need to help Mori escape from. This ECHO Log can be found above the checkpoint in this cave on a high ledge.

To reach it, pass the checkpoint then hug the right side to find a grapple point.

Vault Symbol

This vault symbol can be found on a sign behind the dumpster near Moxxi’s bar.

Heart of the Mountain Activities
Order Bunker: Craven’s Nook

This Order bunker can be found in the northern part of the Heart of the Mountain. You’ll find the Locust Canister across from the entrance on a lower cliff ledge.

Throw it at the door then head inside, clearing out the enemies, as you make your way to the boss, Callous Harbinger of Annihilating Death, who will have one bar of Shield and one bar of Armor.
Related Borderlands 4 Content
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