Tony and Kathy Mommsen launched their 18½-foot Wenonah Odyssey canoe loaded with two Trek 520 touring bicycles, a small makeshift canoe trailer and various camping gear into the St. Croix River at St. Croix Falls, Wis., on Aug. 2. Since then, they’ve pedaled or paddled across southern Minnesota on an east-west route that eventually took them to the Red River and north to Kittson County near the Manitoba border in far northwest Minnesota.