The Chisos Mountains dominate the middle of Big Bend National Park and were created by sedimentary rocks that eroded to expose the harder volcanic rock beneath. (source)
Nestled in the Chisos Mountains is a giant basin where the Lodge and Visitors Center are located. It’s also the start of many trails including the South Rim Trail, one of the most popular hikes in the park with views of thousands of square miles of desert and mountains.
Devil’s Den is a narrow chasm in the southern end of the Santiago Mountains. It sits in the northeast corner of Big Bend National Park, just south of the Persimmon Gap Entrance to the park.
From the road, the Devil’s Den canyon appears as a Harry Potter scar in the foothills. The canyon is about 3 miles away in this photo.
The Rio Grande River forms part of the border between the United States and Mexico. The Rio Grande is 1,885 miles (3,034 km) long, making it the fourth-longest river system in the United States. (wiki)
The Rio Grande valley is lush and green. The United States is in the foreground; Mexico is on the far side of the river.
The Mule Ears peaks rise high above the Chihuahuan Desert.
The peaks are the result of varying erosion of volcanic rock layers. The Mule Ears represent a tower of harder volcanic rock exposed after the softer “tuff” (volcanic ash) eroded from around it.
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