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    Combo water and bushwacking question
    From: Bill B
    Date: 2004 Nov 9, 22:02 -0500

    How did Lewis and Clark, French traders etc. when traveling by canoe
    determine their position?  This question is asked with a bias toward speed
    on the water, plus current, plus all the twists and turns a river can make?
    
    Were they doing some form of DR while on the water?
    
    Bill
    
    
    

       
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