Sweet ride today with Diesel and Trailhead. Started at Boathouse, rode across the lake to catch Sitting Bear to South End Trail to Timber to Cherry Ridge to Lookout Trail to Fishermans to Old Coal to Twin Bridges to Red Dot to Laurel Pond and back onto the lake out and around the furthest island before wrapping up at 12 miles. Fishermans was tough in a few spots where snow drifts had collected, but I'd say the loop was 95% rideable. The lake would be fine on any MTB (though watch for icy patches). The singletrack however - other than maybe Sitting Bear - absolutely required fatties. I had to lower my pressure several times to get it just right. Tomorrow's supposed to stay cold, so if you have the day off, hit it!