This image is from the Salmon River in Idaho, between Riggins Idaho and French Creek, taken on Feb 8, 2010. The circle was turning clockwise in the eddy. The "hook" on the left broke the next day, and the circle floated downstream and broke up. The circle was roughly 100 feet in diameter. Pretty neat.

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That is sweet! Did you take the photo?
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No I didn't. A friend sent me the link from a blog on the internet.
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Very Cool!
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Very cool. I saw a video on Youtube of a smaller one spinning, about 15 feet in diameter.
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Very cool pic.:-)
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Wow, what a cool picture, thanks for sharing it.
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That is cool stuff.... Would be neat to have seen video of it breaking lose....
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It's so cool that something like this occurred naturally and not by human intervention!
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cool picture
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