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Drag mark or trail left by rock. Upper left to lower right. Stops at rock on lower right. 1st time I've ever seen a trail or path anywhere on Mars.

Snapshot: Drag mark or t...

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billputnam
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by billputnam on Jul 15, 2013
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Drag mark or trail left by rock. Upper left to lower right. Stops at rock on lower right. 1st time I've ever seen a trail or path anywhere on Mars.


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