Monongahela monsters By Angela Cotey | September 20, 2019 | 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 One of Pittsburgh & West Virginia’s seven 2-6-6-4s leads a freight across the Monongahela River at Belle Vernon, Pa., near Pittsburgh. Ralph E. Hallock photo