I'm called Follows-Chalk. Joshua sent me to scout for any outsiders coming up from the Southern Passage.”— Follows-Chalk
The southern passage is a location in the Zion Canyon. It is a connection of tunnels and passages that travel back to the Northern Passage in the Mojave Wasteland after the Honest Hearts add-on. It is where the journey into Zion begins.
There are three duffle bags located against the rocks near the ambush site, which can be used to safely store items until Honest Hearts is completed.
In addition to the cave, once the main story is completed and final cut scene has played, in front of the cave entrance will be a footlocker which will contain the following unique items: