Railroads were far more effective at transporting goods across the country without the risk or delay that comes with sailing. Canals while effective weren't as speedy or reliable as a train since boats are rather fickle things. The turnpikes were being used by wagons and carriages that I doubt could compete with Trains!
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Answer: The Great Lakes, the Ohio River Valley, and the Mississippi River valley and its tributary waters.
Explanation: hope this helps
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