Steam at Harlem By Angela Cotey | June 20, 2019 | Last updated on August 8, 2025 Email Newsletter Get the newest photos, videos, stories, and more from Trains.com brands. Sign-up for email today! Get Updates Great Northern O-8-class 2-8-2 No. 3396 leads the first section of train No. 402 at Harlem, Mont., in August 1948. The O-8s, rebuilt from older engines, were the heaviest Mikado types ever. Frank McKinlay, N.F. Priebe collection