The Navigator; Or, The Traders' Useful Guide in Navigating the Monongahela, Allegheny, Ohio, and Mississippi Rivers; Containing an Ample Account of These Much Admired Waters ... a Concise Description of Their Towns, Villages, Harbours, Settlements, &c. with Particular Directions how to Navigate Them, in All Stages of the Water ... Illustrated with Thirteen Accurate Maps of the Mississippi, and One of Pittsburgh