Agassiz Recreational Trail is a 53-mile (85 km), multi-use rail trail in northwest Minnesota, United States, between the towns of Crookston and Ulen. Hiking, bicycling, horseback riding, cross-country skiing, snowmobiling and ATV riding are allowed on the natural-surface trail. The trail is owned by Clay, Norman and Polk counties. Representatives from each county serving on a joint powers board operate the trail. The trail should not be confused with the Agassiz Interpretive Trail in Manitoba, Canada.