This is a strange image. I certainly couldn't have guessed what it is. It's Frozen Lake Sharpe, South Dakota which would be an ox bow lake cut off from the Missouri River, but it's maintained as a reservoir. The circles in the center are agricultural fields. The picture was taken last year from the International Space Station.

Last edited by Mona - Astronomy; 07/08/14 06:38 AM.

Mona Evans
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