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O thou sword of the LORD, how long will it be ere thou be quiet? put up thyself into thy scabbard, rest, and be still.

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Purpose The Coconino Sandstone is one of the most well-known formations in Grand Canyon. The blond-colored sandstone, just three layers down from...

BY: JOHN H. WHITMORE, PH.D.

Creation Pioneer Larry Vardiman

Larry and Jeannette Vardiman During my second year in graduate school at Colorado State University, I received a phone call...

BY: LARRY VARDIMAN, PH.D.

Carlsbad Caverns National Park: Fast Formations

by Dave Woetzel, M.S., and Brian Thomas, Ph.D.* Have you ever toured a cave? There is something especially intriguing about exploring the deep, dark...

BY: VARIOUS AUTHORS

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