In this odd and spectacular north country, contorted rocks reveal the strain of colliding continents, the heat of molten intrusions, and the weight of relentless glaciers, From the swarm of dikes along the rugged coast to the glacially polished granite of Mt. Katahdin, this book explores the fascinating geologic history of Maine's storied rocks. Detailed maps and roadlogs guide you through the woods to such hidden wonders as 100-mile-long eskers, frozen patterned ground, tourmaline-rich pegmatites, pillow basalts, and ice-age delta mud. The latest entry in an amazing series of guidebooks for road trippers who are curious about the forces that created the stunning scenery around them and the rocks under their wheels. Ancient earthquakes, volcanoes and glaciers sure beat "Are we there yet?" Check for titles that cover your home turf, or the road where you may wander. D. W. Caldwell was raised in rural Maine where, at the age of twelve, he decided to become a geologist when he earned a Boy Scout geology merit badge. He holds a Ph.D. in geology from Harvard University and has worked for both the United States and the Maine Geological Surveys. Caldwell is a consultant in construction materials, in bottled water sources, and in water pollution studies and serves as an expert witness in cases dealing with these issues. He has been a professor of geology at Boston University for more than thirty years.