Although we live in Tamworth, we did about a dozen trips to Lyme/Dorchester over the winter for skijoring and dog sledding. It's one of the few places that had good snow this winter, and it's a convenient mid-way point to meet-up with friends from Windsor, VT, who have 19 dogs we've been sledding with. You're lucky to be so close to the Lyme trail network. We met Bob a couple of times over the winter, and have become pretty familiar with his great trails.