Black Hills Central Railroad #104 is a 2-6-2T tank engine that was built by Baldwin Locomotive Works in 1926 for the Silver Falls Timber Company in Oregon and The Peninsula Terminal Railroads in Portland, Oregon. The Black Hills Central Railroad acquired 104 and its twin number 103 (built in 1922) in 1965 - with engine #104 having been in continuous service over the years. No. #103 is currently in storage awaiting its restoration.