100’s of historic and original illustrations show the 400 year old struggle for Hudson River resources and understanding. Iconic boats symbolize 4 great ages of the A Native American dugout represents time before writing; Henry Hudson’s Half Moon is the Age of Exploration; Robert Fulton’s steamship Clermont embodies the Age of Industry; Clearwater sails into our Age of Environmental Awareness. Includes Kids Guide to River Resources and make a 12’ historic map.