A new study in Chile shows how small differences in rock type can drive large differences in erosion, vegetation, and river networks, illuminating the role of mineralogy in shaping landscapes.

Probably the most famous rock formation in West Virginia ... The rocks rise 900 feet above the North Fork River and are viewable both from the road at the bottom and at the top.

Layered rock formations The Grand Canyon is a geological ... making it a natural timeline of Earth's history. Colorado River The Colorado River, winding 277 miles through the canyon, is the ...