N.M. cavers chart unique `snowy' river of crystals (AP)

[riky]

N.M. cavers chart unique `snowy' river of crystals
    (AP)

 

<p>You are not allowed to view links. Register or LoginAP - Hundreds of feet beneath Earth's surface, a few seasoned cave explorers venture where no human has set foot. Their headlamps illuminate mud-covered walls, gypsum crystals and mineral deposits.</p><br clear="all"/>


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