Superlative steam By Angela Cotey | June 10, 2025 Email Newsletter Get the newest photos, videos, stories, and more from Trains.com brands. Sign-up for email today! Get Updates Chicago, Rock Island & Pacific had a fleet of 85 4-8-4 Northerns, largest in the country. Here, No. 5058 leads a westbound freight near Lawrence, Kans., in January 1952. Robert P. Olmsted photo