Let us take you to Guadalupe Mountains National Park in western Texas, USA. The park, officially established in 1972, covers 349 square kilometres today. Here, the Guadalupe Mountains rise over the salt dunes of the Chihuahuan Desert. At 2667 metres, the highest point of the mountain range—and of Texas—is the Guadalupe Peak. Another outstanding landmark, often used as a waymark for travellers, is the 2464-metre-high El Capitan—not to be confused with the more famous, but shorter, El Capitan in California—limestone cliff, seen in today's image.