Weyerhaeuser Timber No. 200 and 201

Numbers 200 and 201 built by Baldwin in 1929 and 1933 for Weyerhaeuser Timber were most likely the largest locomotives ever built for logging. The customer needed them for their world's largest sawmill at Longview, Washington. Their rails were only 60 pounds per yard, had grades of four percent and curves of 25 degrees, what corresponds to a radius of 70 meters. The locomotives were 2-8-8-2 Mallets with 51-inch drivers and a weight of nearly 498,000 pounds with tender. The high and low pressure cylinders had diameters of 23 and 35 inches and a stroke of 28 inches. They were replaced by diesel locomotives in 1952 and scrapped in the following year.