The Canyon is a Book of Revelations in the rock-leaved Bible of geology. - John Wesley Powell A professor of geology at Illinois Wesleyan, John Wesley Powell had more than just a passing interest in ...
Geology of the older precambrian rocks of the upper granite gorge of the Grand Canyon / R.S. Babcock, E.H. Brown, and M.D. Clark -- The younger precambrian rocks of the Grand Canyon / Trevor D. Ford ...
Mysterious driftwood high in Grand Canyon caves hints at the legacy of Arizona’s huge impact crater.
Introducing the Grand Canyon / Stanley S. Beus, Michael Morales -- Precambrian crystalline core / R. S. Babcock -- Grand Canyon Supergroup : Unkar group / J. D. Hendricks, G. M. Stevenson -- Grand ...
One of The Museum of Northern Arizona’s current exhibits spotlights the famous Grand Canyon Dragon Map created by George Billingsly, and others, and evaluates its history and ongoing impact on ...
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