• Sierra del Carmen

    Big Bend

    National Park Texas

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  • Extreme Water Shortage

    Extreme water shortage throughout park. Visitors are limited to 5 gallons per day, and are encouraged to conserve further when possible. Please consider bringing your own water to the park.


Deinosuchus skull

Deinosuchus skull

The fossilized remains of gigantic crocodiles have been discovered in the Aguja Formation in the south-central part of the Big Bend National Park. These are among the largest crocodiles ever known.

With lengths of 40–50 feet and jaws studded with 6-inch teeth, these powerful predators were extraordinarily equipped to feed upon a variety of dinosaurs. In fact, dinosaur bones have been found here that are heavily damaged and covered with distinctive crocodile bite marks! Just like modern day crocodilians, Deinosuchus riograndensis probably hunted by ambush—lying submerged near shore, and violently seizing large dinosaurs as they foraged amid the vegetation of Big Bend's ancient swamps.

The magnificent skull of Deinosuchus is on display at the Dallas Museum of Natural History.

Did You Know?

Horseback rider in Tornillo Creek, 1930s

Tornillo Creek drains the eastern portion of Big Bend National Park. The usually dry creek bed is named for the screwbean (tornillo) mesquite. For brief periods after summer thunderstorms, this desert stream roars. Tornillo Creek joins the Rio Grande at Hot Springs. More...