Boulder, Colo.- Scientist Jean-Claude Thouret is worried about the one million people who live in the suburbs and city of Arequipa in southern Peru. The city's center is only 17 km from the summit of ...

A mysterious lumpy growth in Peru known as the yareta may count among the world’s oldest plants, according to the U.S Geological Survey. USGS photo by C. Harpel A mysterious lumpy growth in Peru that ...

This is El Misti Volcano in Peru. An article by Mirian Mamani et al. in the December 2009 issue of Geology examines the Central Andes of Northern Chile and Southern Peru which have been characterized ...

A mysterious lumpy growth in Peru that resembles a pile of rocks — only lime green — may count among the world’s oldest plants, according to the U.S Geological Survey. It’s called the yareta and a ...