Hit the road and discover the incredible geologic story of Texas--right from your car window. With Roadside Geology of Texas, Third Edition as your travel companion, you'll learn how the state's stunning landscapes were created, from the rugged peaks of the Guadalupe Mountains to the limestone ledges of the Edwards Plateau and the shifting sands of the Gulf Coast. With more than 1 billion years of geologic history on display and home to nearly every rock type under the blazing sun, Texas geology is world-class, including in the subsurface, where oil can be found if you know where to look. Whether you're a geology enthusiast, a fossil collector, or simply curious about the rocks beneath your feet, this comprehensive guide details the geology you can see along 50 roads and at nearby parks and natural areas, including 5 roads in Big Bend National Park. More than 250 color photographs and illustrations capture the spectacular palette of Texas rocks, and detailed geologic maps let you know exactly where you are in time and space.