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On our first trip we spent a day on that put-in sandbar, waiting for the entire group to gather.  It was spring; the river was moving fast with spring runoff.  None of us had any river boating experience whatever.  We had been assured by friends who had run Glen that what lay ahead was without significant rapids—"little riffles," they said, "and all in the first few dozen miles"—and what we would see would be magnificent beyond any magnificence we could anticipate.

Nevertheless, that river looked fast.  And it roared, too.  The roar was from twigs dipping into the water from the nearby banks.

It looked very fast . . .