What to know
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Aburrey Quarry is southeast of the Hub Base in Valley IV, accessed via the Mountain Side Trail and a small cave.
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The Quarry Rescue mission unlocks after you finish the Paving the Way main quest.
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If your map route looks blocked or ends early, approaching from the Hub Base side still gets you into the quarry.
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Once inside, you’ll typically activate a checkpoint and continue deeper (rope descent and a door-pad crate puzzle come later).
In Arknights: Endfield, Aburrey Quarry can feel “out of reach” if you follow the most direct quest line and hit an apparent dead end, but the consistent solution is to approach it from the Hub Base side and enter through the Mountain Side Trail’s cave.
| Topic | Quick detail |
|---|---|
| Region | Valley IV |
| Closest anchor point | Hub Base |
| General direction | Southeast from Hub Base |
| Main access route | Mountain Side Trail → small cave → Aburrey Quarry |
| Quest most players go for here | Quarry Rescue (Side Mission) |
Aburrey Quarry: Location
Aburrey Quarry is located southeast of the Hub Base in Valley IV, and the intended entry is through Mountain Side Trail, which leads into a small cave that connects into the quarry.
However, you cannot follow the marker directly, or you’ll hit the dead end that looks like this…
How to go to Aburrey Quarry from Hub Base
Step 1: Confirm you’re navigating from the right anchor point
Open your map and set your reference point around the Hub Base area, since Aburrey Quarry is positioned southeast from there.
Step 2: Head toward Mountain Side Trail
From Hub Base, move southeast until you reach the Mountain Side Trail path that leads out toward the quarry-side terrain.
The exact path to follow is this…
Step 3: Use the cave entrance to transition into the quarry zone
Stay on the trail and follow it into the small cave; this cave is the key connector that leads directly into Aburrey Quarry.
Step 4: Enter Aburrey Quarry and secure the checkpoint
Once you arrive in Aburrey Quarry, you can proceed to the nearby checkpoint area and activate it so returning later is easier.
How Quarry Rescue ties into reaching the quarry
Quarry Rescue is a side mission set in Aburrey Quarry that unlocks after completing the Paving the Way main quest, and it directs you to travel to the quarry to meet the on-site NPC.
Rewards table for Quarry Rescue
- T-Creds – x6050
- Protoprism – x3
- Oroberyl – x150
- Arms INSP Kit – x19
- Operational EXP – x400
If your objective marker appears to sit behind blocked terrain or your discovered-map route funnels you into a dead end, reroute to Hub Base and take the Mountain Side Trail into the cave entrance instead of forcing the blocked approach.
