In early December 2019, I skied at Hayes Copp Ski Trails. The snow was a bit crusty plus it was late afternoon when I arrived, and so I only skied along a small segment of this trail system. However, in 2014 I skied a much longer route at this location. Click HERE to view my blog posting for that adventure.
The loop that is most commonly done is a little over 5 miles. It consists of the Great Gulf Link; Great Gulf Trail; Leavitt's Link. There is another more difficult trail in the system called Ricks Run which I've never done.
Just so you're not taken by surprise if you should decide to ski at this location, the USFS does minimal grooming of the Hayes-Copp trails, and only on an infrequent basis. Depending upon how many skiers have been on the trail before you after a snow dump, it can sometimes be sort of like a backcountry ski experience! I don't mind this, but others might!😀