Racetrack Playa Sailing Stones

The Racetrack Playa Sailing Stones : How Did They Sail Across a Dry Lake?

  When I first saw a photo the Racetrack Playa Sailing Stones years back I was just as perplexed as you probably are now.  My first thought: How did these massive stones (some weighing over 200 Pounds) glide across this barren landscape!? They look unlike any other geological phenomenon on earth, because quite frankly, and
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