Southwest
Big Bend National Park
Texas
Big Bend encompasses the largest protected area of Chihuahuan Desert in the United States, where the Rio Grande carves dramatic canyons through ancient mountains.
801,163 acres
581,220 visitors/yr
Southwest
Guadalupe Mountains National Park
Texas
Guadalupe Mountains rise dramatically from the West Texas desert, home to the state's highest peak and the fossilized remains of an ancient reef.
86,367 acres
243,291 visitors/yr