Ranger Substation Peregrine is northwest of the Zion Valley welcome booth and joins two other substations in Zion, including Ranger Substation Eagle and Osprey. All three have similar layouts. The lower level of the station contains a toolbox hidden behind large wooden boxes on a shelf.
The upper level contains a locked ammunition box under a table and a gun case in the northeast corner of the room. A park ranger hat can also be found. The entire building is marked with the chalk-white handprints of the Dead Horses scouts.
When Follows-Chalk is traveling with the Courier, reaching this location will reveal nearby map markers and inspire a heightened sense of awareness (Perception +3) for three minutes with the Well-Stacked Cairns perk. The map markers revealed here include the ant burrow, Virgin Fork campground, and the Eastern Virgin.