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Show 4572 Freeman- D 2591 There was a four or five foot rise of the river that night. One of our party, I think it was Andy Wimmer, had his bed completely surrounded by water where he slept on the bank. There was a considerable rise on that occasion. I noticed that in wading the rapid the next morning there was a more broken condition of the water than with the ordinary silt content. That is the only thing I recall approaching a sand wave on that trip. Q As I understand, you have seen sand waves on the river at other places? A The largest sand waves I have ever seen were near the conclusion of the Grand Canyon voyage of 1923. We had them below Grand wash, some very heavy. We were navigating very carefully, even with these specially- constructed boats we used through the Grand Canyon. Q How high have you seem them down there? A Roughly, those might have been to a height of three or four feet. Q You have never seen them higher than that? A No sir. Q Have you seen them break? A Actually breaking, no. Q You don't which way they break, forward or backward? |