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    Re: Lewis and Clark, and River Navigation
    From: Frank Reed CT
    Date: 2003 Dec 3, 17:16 EST
    George Huxtable wrote:
    " Not very useful to me just yet, as so far I am poking into
    Lewis and Clark's journey up the Mississippi, from Cairo to St Louis, and,
    from memory, Plamondon's maps don't start until the official start of the
    expedition, near St Louis."

    A few bits of river trivia:
    1) That river town's name is pronounced KAY-roh, unlike the Egyptian version <g>.
    2) The Mississippi from Cairo north to St. Louis and beyond is entrenched. That means its course is stable on a time scale of centuries. South of Cairo, the river (before the USACE projects of the 20th century) used to whip back and forth cutting new channels and cutting off meander bends at an astounding rate. Similarly, there are stretches of the Missouri that are completely stable on a historical time scale and one large section (from Kansas City to the Dakota border, IIRC) that meandered significantly during the past 200 years.
    3) There is a mapping coverage available at various places on the net (including USGS) that shows details of most of the Missouri River in its meandering sections as of about 1890. There's next to nothing available before then.

    Frank E. Reed
    75% Mystic, Connecticut
    25% Chicago, Illinois
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