Statistics for occurrence #1 of “Williamsburg, in Kentucky” in article 8 of The Daily Dispatch: February 22, 1862., [Electronic resource]:
...ole length of the river is estimated at about six hundred miles. During high water large steamboats ascend to Nashville, and small boats about three hundred miles further.
About fourteen miles from Williamsburg, in Kentucky , near the Cumberland Mountains, the river has a vertical fall of sixty feet. The area claimed by thin river is estimated at seventeen thousand square miles.
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