About the Author

Robert J. (Bob) Lillie is an Emeritus Professor of Geosciences at Oregon State University. He is author of "Parks and Plates: The Geology of Our National Parks, Monuments, and Seashores" (W. W. Norton and Company, 2005) and is a Certified Interpretive Trainer through the National Association for Interpretation. Bob has also worked as a seasonal park ranger at Crater Lake, Yellowstone, John Day Fossil Beds and other National Park Service sites.

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lillier@geo.oregonstate.edu         © Robert J. Lillie 2015