Murphy is a town to the south east of Pass Chris that is inhabited by the Night Wolve's. There are several nodes of curious debris in the town and to the west of it.
Lonnie Parker is awaiting you there with the last part of Know Your Mechanic. Fight against the Night Wolves so Lonnie and his Pass Chris Scavengers can use the nearby Scrap Piles. In the camp you also find some Curious Debris.