Tree Wells: A Quick Guide to Being Prepared One hidden danger that all skiers must be aware of is tree wells.  Tree wells are sinkholes formed by pockets of air and snow around the low hanging branches of a tree (usually an evergreen).  Tree wells can form anytime, but they are especially common in un-groomed areas (places where the snow is not packed down).  Because of this, many ski ranges are especially susceptible to tree wells immediately after fresh snow has fallen.   Steering Clear The … [Read more...]