Complex sentence: The scenic route ran through Wisconsin to St. Paul, Minnesota, across North Dakota through Fargo, Bismarck and Dickenson, then across Montana through Glendive, Billings, Livingston and Missoula.
Split into simpler sentences: The scenic route ran through Wisconsin to St. Paul, Minnesota, across North Dakato through Fargo, Bismark and Dickenson. Then across Montana through Glendive, Billings, Livingston and Missoula.