Mud season occurs along the Appalachian Trail in New England, most dramatically in Vermont, New Hampshire, and Maine, after the snow and ice melts before the trails dry out. Typically this means the nights are freezing and the days are warm. As the snow and ice melt the fragile soil are saturated with water and the trails (and dirt roads) become muddy! Hiking on the fragile soils when they are muddy often causes trail widening and the thin and fragile top soil to erode away, ultimately causing harm to the plants growing near the Trail and water sources (streams, brooks, rivers) along the Trail. Please let the New England trails rest for the month of April in the lower elevations and May for the higher elevations until they harden back up.