Skied the Esker and Lime Kiln trails and found them to be in very good condition and surprisingly fast in these cold temperatures. There is some damage on the Lime Kiln for about 100 yards as an ATV entered the trail from the closest point of the snowmobile trail. There is a big open field in this area with only a small sign to deter snowmobilers and no big rocks or fence to keep them out. This is the second time in two weeks that this issue has surfaced with resulting damage. It is my wish that the park will look for a solution in this area as this issue has been going on for all of my 25 years of skiing in the park.