Clark Fork River By Brian Schmidt | October 19, 2021 | 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 Clark Fork River Milwaukee Road tTrain 262 crosses high above the Clark Fork River at St. Regis, Mont., in August 1973 with a Little Joe leading three SD40-2s. Steve Schmollinger photo