Head of Navigation

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Head of navigation
Head of navigation is a term used to describe the farthest point above the mouth of a river that can be navigated by ships. This term can be somewhat subjective on many streams, as this point may vary greatly with the size of the ship being contemplated for navigation. On others it is quite objective, being caused by a waterfall or a dam without navigation locks.
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Head of Navigation
The furthest (upriver) location on a river deep enough for navigation. (TNDOT1)

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