Grand Canyon may be as old as dinosaurs, says new study

New geological evidence indicates the Grand Canyon may be so old that dinosaurs once lumbered along its rim, according to a study by researchers from the University of Colorado at Boulder and the California Institute of Technology.

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<p><a href="http://www.physorg.com/news127055332.html">Grand Canyon may be as old as dinosaurs, says new study</a></p> <p>New geological evidence indicates the Grand Canyon may be so old that dinosaurs once lumbered along its rim, according to a study by researchers from the University of Colorado at Boulder and the California Institute of Technology.</p>