Southern passage

The southern passage is a location in the Zion Canyon. It is a connection of tunnels and passages that travel back to the Mojave Wasteland after the Honest Hearts add-on.

Layout
This is where the journey into Zion begins. It is a nondescript tunnel into a rock face that serves as the way to/from Zion Canyon.

Notable loot
In addition to the cave, once you have completed the main story line and watched the final cut scene, in front of the cave entrance there will be a footlocker which will contain the following unique items in the add-on:
 * A Light Shining in Darkness
 * Chalk's headdress
 * Joshua Graham's armor
 * Daniel's hat
 * Daniel's outfit
 * Salt-Upon-Wounds' helmet
 * Salt-Upon-Wounds' power fist
 * Scripture

Appearances
The southern passage appears in the Fallout: New Vegas add-on Honest Hearts.