A Polaris MRZR with specialized track system is staged on a snow mound in front of the U.S. Army Engineer Research and Development Center’s Cold Region’s Research and Engineering Laboratory’s (CRREL) winter mobility laboratory. The heavily modified vehicle uses its unique systems for detecting how the vehicle moves on terrain as it freezes to when it starts to thaw and anything in between. The winter mobility laboratory does a lot of research in Arctic regions, and all of their research is aimed at increasing Arctic or winter performance in Arctic environments. (U.S. Army photo by Orian Welling)