South of Revelstoke and west of Castlegar, Paulson Cross Country Ski Trail system has 45km of groomed ski trails maintained by the Castlegar Nordic Ski Club. There are several 6 to 10 km loops which offer excellent recreational level cross country skiing to advanced levels and backcountry to a network of small cabins. The trails utilize a wide range of Forest Service roads. There are a number of hills and the trails run through bush and clearings. It is part of the Kootenay wilderness experience. The trails roll through meadows and forests.
The Mud Lake trailheads are located on Highway 3 about 30km west of Castlegar, adjacent to Nancy Greene Provincial Park.
The Ben Shaw loop is about 7 km in total which offers a short and mid loop cut off. The Ben Shaw cabin is located about 3.5 km from the trail head. Washrooms are available at the trail head and at the cabin. The Ben Shaw is a beginners loop, excellent for the whole family. When possible, a centre skating lane is set. A Boys Scout cabin is located within a km of the trail head along the Booty Trail side of the loop.
Several trails branch off from the Ben Shaw loop. These include a beginners loop of Mud Lake, the Winterberry Trail, and the more challenging Pine Trail and Rossland-Paulson Trail. All of these trails eventually connect to the Glenmerry Road. Direct access to the Glenmerry can be made from the highway, about 4 km before the Mud Lake parking lot.
The Glenmerry leads straight up a 5 km logging road to the Nordic Cabin which offers a spectacular view of Old Glory and the surrounding mountain range on a clear day. From the Nordic Cabin, there is another trail which leads to the Sons of Norway Glenmerry hut. This is a challenging distance for the beginner skier but well worth the effort and experience.