Walkerton, Virginia is 58 miles from the Chesapeake Bay, and the Mattaponi River running through it is completely fresh water, making it easy to forget it has any connection to the Bay at all. But it has an interesting claim to fame--it has the highest average daily tide change of any location on the Chesapeake.
How does such a distant, freshwater town have such a strong tide? John Page Williams explains how the interactions of fresh water, salt water, short-period waves, long-period waves, and the uniqueness of the Mattaponi itself converge to create Walkerton's unique place on the tide tables.