When we first moved to the wilderness of North Idaho, I couldn’t figure out what the trailer on top of this truck was for. It turns out that in this configuration is the compact arrangement of a logging truck making it easier to drive on city streets. Driving around the area, you’ll see trucks like this in the driveway of people’s homes just like any business vehicle. The trailer on top of the truck is the back end of the truck. After unloading, the lumber company uses a crane to put the trailer on top of the truck. And in the forest, the process is reversed by an excavator.