These stunning natural formations are seen on the shores of the Crowley Lake, a reservoir on the Owens River in southern Mono County of California. According to some geologists, they were the ...

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.

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 ...