Imagine an ear falling off a first century Roman statue and you’ll get an idea of what someone found at the Lake Mead National Recreational Area in Arizona. Photos of the fossil — yes ...

The Dilophosaurus is probably the best-known dinosaur whose fossil remains have been found in Arizona. That’s because the movie "Jurassic Park” made it famous — or at least a version of it.

Travelers can dig up 66-million-year-old dinosaur fossils in New Jersey or mine for diamonds at an Arizona state park. See more U.S. locations where you can hunt for treasures.  Read More ...

This oddly shaped fossil came from a 6-million-year-old rock formation in Lake Mead National Recreation Area along the Arizona-Nevada border. What is it? National Park Service image It has “an ...