Between late 1850’s and up until 1907 Arizona’s Colorado River from Yuma up to about to where Lake Mead is found today did River steamers run. Mostly freight, some passengers. Vessels were shallow drafting (2-3 feet). Wide beamed. Mostly on Colorado River. Power Point presentation appreciates the vessels and associated movements. Navigation ended w the railroads. Compare and contrast Colorado River maritime navigation w that of the Rancocas Creek. Note vessels draft and beam. Shallow drafting and wide beamed. Navigation ended w the onset of railroads. Maritime affairs of the 1870’s industrialization carried the USA into the 1900’s