Media Summary: In this new series, geology professor Shawn Willsey investigates a Learn to "READ" the rocks with this innovative video series designed to help you learn geology. Join geology professor Shawn ... Join geology professor Shawn Willsey near the Colorado River and the start of the Grand Canyon at an awesome
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In this new series, geology professor Shawn Willsey investigates a Learn to "READ" the rocks with this innovative video series designed to help you learn geology. Join geology professor Shawn ... Join geology professor Shawn Willsey near the Colorado River and the start of the Grand Canyon at an awesome Join geology professor Shawn Willsey and investigate a fascinating
