Guadalupe Mountains National Park is in the vast Chihuahuan Desert of western Texas. It’s known for its bright-white Salt Basin Dunes, wildlife-rich grassland and fossilized reef mountains. The Guadalupe Peak Trail weaves up through a conifer forest to the state’s highest summit, with views of the rocky El Capitan peak to the south. In the north, the McKittrick Canyon Trail is known for its colorful fall foliage.