To celebrate her 40th birthday, the author wanted to hike a mountain in the Bolivian Andes. Hallucinations and vomiting weren ...

The new species is named Oceanites barrosi, or the Andean storm-petrel. The name honors ornithologist Rafael Barros ...

One of the most remarkable placer gold fields in the world is found in the Andean piedmont in the department of Madre de Dios ...

The Andes region is already experiencing record breaking droughts and water shortages as a consequence, as well as fatal ...

Now, a new analysis suggests these glaciers, located at high altitudes in the Andes Mountains, are smaller than they’ve been since the last major ice age — an alarming milestone that could ...

The red metal deposit located in the Chilean region of O’Higgins, which is controlled by the state copper company Codelco, is ...

I grew up in Bolivia, a landlocked country bound on its southwestern border by the Andes Mountains. Two-thirds of its land is ...

As they are in many places around the globe, glaciers perched high in the Andes Mountains are shrinking. Now, researchers at the University of Wisconsin-Madison and their collaborators have ...

And with mountains rising along the horizon as far as the eye can see, their prominent role continues among many communities in the Andes today. The Inka believed that apukuna had power over water—and ...

They were not real. I got altitude psychosis a few hundred meters from high camp as I scaled the frigid face of Huayna Potosi, the ninth-highest mountain in the Bolivian Andes. My optimism ...

Elizabeth Lavis planned to hike the ninth-highest mountain in the Bolivian Andes for her 40th birthday. She climbed too quickly, without ample preparation or acclimation, and got altitude psychosis.