Machu Picchu, the mountain citadel high in the Andes Mountains of Peru, is a familiar icon of the Inca Empire. Perched high on a steep and narrow ridge between two mountain peaks, the site is ringed on three sides by the Urubamba River, a dizzying 1,600 feet below.
Vacationing in Desolation Canyon sounds a bit, well, grim. So, I had a few twinges of apprehension about taking a multi-day white-water rafting trip through this canyon. It was formed a few million years ago [...]
Whenever I venture out in the world, I check out the rocks in my environment – they are all around us in natural outcrops or layered onto the buildings in our towns and cities. As [...]
When Alex Honnold climbed El Capitan, the 3,200 foot high sheer rock face in Yosemite on June 3, 2017 – alone, and without any equipment for fall protection -- it was an epic feat that [...]
The volcanic glass obsidian has a rock solid place as a valuable resource in human history. It also has a solid place in fiction, as the Game of Thrones material of Dragonglass found on Westeros [...]