The Crumbling Highway is a small map that has only one interior area, a basement for one of the inaccessible houses in the center of the map. There are, however a few cars around if the player needs to rest and hide from the Wolves on the map.
This map is exposed to the ocean. Venturing too far on the frozen coast will result in a thin ice warning, and, if it is not heeded, the player will fall through and die. The other side of the river has a small island with some Coal.
Rabbits abound on the map, but the wolves will readily chase and eat them if they get too close.