Earth's valleys tell an ancient story of ice and power. Over millions of years, massive glaciers have carved, sculpted, and transformed the landscape in ways that still take researchers' breath away.

The North Crestone Creek drainage area is an example of the U-shaped valley typical of glacial erosion, as opposed to the V-shaped valleys made by rivers. CSU researchers modeled the extent of ancient ...

Yosemite looked very different one hundred million years ago. Towering volcanoes existed here then making up a vast mountain chain similar to the modern Andes Mountains in South America. Deep beneath ...