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of this character of obstructions." The snags and logs of generations had been almost untouched by the government—"left to the uncertain and unpaid-for attention of private individuals." The plan now (1866) to rid the valley entirely of these great impediments to navigation marks a new era in the history of the Ohio. It was found, upon examination, that in the six hundred odd miles between Pittsburg and Louisville there were seventy-five separate points where there were snags, forty-nine "logs and loggy places," twenty-eight wrecks and seventy-two "sunken boats &c." Between Louisville and Cairo there were some sixty additional obstructions of similar nature—a total of two hundred and eighty-five obstruction points. A schedule of these obstructions, between Pittsburg and Wheeling for instance, will be found interesting. The asterisks refer to obstructions in or near the channel at comparatively low water: