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March 5th, 2019 - Pilot's Log
Where Very Little Happens

Stephen "FPilot" Bierce / 美朝深恬
Date: 2019-03-05 00:06
Subject: What causes sinkholes? | EarthSky.org
Security: Public
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What causes sinkholes? | EarthSky.org

And where else in the U.S. might be vulnerable to sinkholes?

Posted by Stephen R. Bierce on 5 Mar 2019, 05:06
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