Washington DC: The American Waterways Operators, Inc., February 1948. Pamphlet. 35p., double-column text printed on coated alkaline paperstock and staplebound in 11x8.5 inch decorated wraps. Find a number of fullpage b&w photos of contemporary barges and tugs in action, and a double-spread centerfold map with spot color that shows current and proposed riverine routes. Nice and clean, a very good copy.