One of the most important pale-ontological sites of the world is located in the town of Sousa, in the remote interior of the state of Paraíba, about 420km from João Pessoa. In "Rio do Peixe" you can find the Dinosaur Valley, with the highest incidence of dinosaur footprints in the world. The Dinosaur Valley has an area reserved for researchers and visitors to see the footprints of 130 million years old prehistoric animals that marked the land with a trail of 46 meters in a straight line, with more than ½ a meter of length. The passage of these animals through Paraíba's countryside arouses the interest of scientists, tourists and curious people from all around the world.