From its source high in the Peruvian Andes to its mouth on the coast of Brazil 6400 kilometres away, the Amazon river flows across almost the entire breadth of a continent. The mountain range it ...

The western U.S. is a geologists' dream, home to the Rocky Mountains, the Grand Canyon, active volcanoes and striking sandstone arches. But one landform simply doesn't make sense. Rivers normally flow ...

On May 12, 2008, the magnitude 7.9 Wenchuan Earthquake shook central China, its destructive tremors spreading from the flank of the Longmen Shan, or Dragon's Gate Mountains, along the eastern margin ...

The Green River winds a surprisingly direct route through Utah’s Uinta Mountains. This river has carved a deep canyon straight through one of the mountains. This scenic setting has long puzzled ...

Table Mountain is a wetland. Not in the reedy, duck-filled sense people usually imagine, but in a much more surprising way. It’s an ancient sponge, a seep, a slow-release valve. It’s a piece of ...