A few years ago, images of Rainbow Mountain in Peru began infiltrating my Instagram feed. The photos showed an above-the-treeline slope that looked like someone had dumped buckets of gold, pink, and ...

Cordillera Huayhuash in Peru is a spectacular mountain range known for its towering peaks, glaciers, and rugged alpine landscapes. Located in the Andes, it is considered one of the most beautiful and ...

The first impression is usually confusion rather than awe. From a distance, the slopes look painted in bands that do not belong to ordinary rock formations, rust red beside ochre, pale green crossing ...