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Product Description The geology of Washington is a story of islands--micro-continents--coming in from the sea. Two hundred million years ago most of Washington consisted of two large islands, each one a scrap of continent, lying somewhere in the vastness of the Pacific Ocean. One after the other they docked onto the North American continent, each adding its distinctive bit to the complex geologic and geographic mosaic of western North America. Review "Through the Roadside Geology of Washington . . . I've started to make sense of . . . the natural features of our state . . . from the vast volcanic flows that formed the Columbia Plateau . . . to the 1980 eruption of Mount St. Helens." --Kristin Jackson, Seattle Times About the Author David Alt is a geology professor at the University of Montana in Missoula. Dedicated to bringing geology to the general public, he cofounded the popular Roadside Geology series. He has written a number of books in the series with coauthor Donald Hyndman, and helps edit others. Alt also teaches elderhostel courses, leads field trips, and presents public lectures about regional geology. He lives in Missoula. Donald W. Hyndman is dedicated to bringing geology to the general public, and cofounded the popular Roadside Geology series. He has written a number of the series titles with coauthor David Alt, and helps edit others. When he is not writing or editing books, Hyndman teaches geology at the University of Montana in Missoula.