Half of the Minnesota Randonneurs's rides are 200K or shorter, and this year, for the first time, they will offer four gravel rides of 100K to 150K. Randonneuring groups in the upper Midwest primarily offer rides, called brevets, of 100K, 200K, 300K, 400K and 600K. A full schedule of brevets is listed here.
I threw my snowshoes, hiking pole and a daypack filled with essentials into my Ford Ranger and drove north. The designated snowshoe trails that I visited in both Flambeau and Brule River state forests were relatively short, from a half mile to two and a half miles in length. In most Wisconsin state forests, you can snowshoe just about anywhere, as long as you stay off groomed cross-country ski trails. So this leaves snowshoeing distances up to your choosing.