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Old 19-11-2008, 12:36 AM   #21
Join Date: Feb 2007
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Originally Posted by tjohn View Post
If you are referring to the mark on that B&W satellite picture, I don't know caused it (possibly was caused by spring water) but it does not match the mark in the top picture which is dry and has a somewhat triangle shape.
It was 7 years of erosion later though...
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