Michigan Northern By Angela Cotey | October 16, 2024 | Last updated on August 7, 2025 Email Newsletter Get the newest photos, videos, stories, and more from Trains.com brands. Sign-up for email today! Get Updates Michigan Northern RS2 No. 1501 works in the rain on Oct. 7, 1978. Its main line consisted of the former Pennsylvania Railroad route from Grand Rapids to Mackinaw City and it operated from 1976 to 1986. Fred Hamilton photo