Natural Features in Texas

The Chisos Mountains

Nature·Brewster County·Texas

The only mountain range entirely contained within a U.S. national park, and the southernmost range in the continental United States. The peaks are volcanic — lava flows, ash falls and intrusions from a period of intense eruption between about 47 and 32 million years ago, sitting on top of much older sedimentary rock. The elevation makes them an island: black bear, Mexican jay and Douglas fir survive here in cool, wet conditions surrounded on all sides by Chihuahuan Desert.

Getting there

29.2700, -103.3000

Locations are approximate and may be inaccurate, on private land, or otherwise inaccessible. Check before you travel.

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