/waypoint 4431865 3372324
This is a really good way to get easy scrap plastic (a hard-to-get component, especially at lower levels, because you can't buy it). These junk piles will mostly drop "scavenged tech", but are very worth the time to mine for the plastic. All of the nodes will drop all 3 items at the same rate above.
These are scattered around the mouth of the cave at the edge of Terrance, over by the PvP bridge. It is the area surrounded by zombies ("Diggers") . It is easy to find because there are buzzards flying over it in a circle. There are two nodes in the trench by the cave mouth, but over half a dozen more in the area above surrounding the cave mouth. They re-spawn very quickly.