Mud, sand, and snow can bury your rig. A shovel is a great way to remove much of the muck from around your tires and body and see if any hidden stumps or obstacles are the reason that you can’t move forward. Just because you can’t see the buried boulder, doesn’t mean that it isn’t there. Remember, seeing, isn’t looking. It’s always better to get out of the rig and investigate the path ahead and below.