Pittsburg & Shawmut coal train By Angela Cotey | October 20, 2018 | 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 Three yellow-and-red SW9s move a cut of hopper cars out of the coal-cleaning plant at Ringgold, Pa. in the mid-1950s. P&S, a 100-mile line between Freeport and Brockway, Pa., dieselized in 1953 with nine SW9s. Richard J. Cook photo