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Since the late 1800s, when professional fossil hunters vied with each other to bring the largest and most complete specimens to the museum market, Utah has been one of the most fertile grounds for dinosaur discovery. Because rock from the Mesozoic era covers more than 25,000 square miles in Utah, the state is a natural museum of the great age of dinosaurs. The presence of sites such as Dinosaur National Park and the Cleveland- Lloyd Dinosaur Quarry underline Utah s ongoing paleontological significance. There are probably more paleontologists residing and working in Utah now than at any time...

Driving through Nevada, you may be miles from nowhere, but you are never far from an interesting rock, the shoreline of an ice age lake, or an active or historic mine. The Silver State has some of the most diverse geology in the United States, and much of it lies in plain sight thanks to the arid climate of the Great Basin. Geologic forces continue to shape Nevada, stretching it apart and bringing magma near the surface. Earthquakes periodically rock its lonely outposts, creating some of the biggest fault scarps in the world. With the help of Roadside Geology of Nevada, you can appreciate...