Michael Lamb of the University of California at Berkeley and his colleagues focused on the Box Canyon in Idaho, USA (Science 320 ... and groundwater-related erosion is not a viable candidate ...

Formed over thousands of years of erosion caused by hydrothermal activity, water and other natural forces, the Grand Canyon of the Yellowstone is the primary attraction in the Canyon Village area ...

Every human step into the canyon represents about 20,000 years' worth of erosion. This short film could be used to stimulate discussion with students about just how slow the process of erosion can ...

One of Utah’s natural wonders will never be the same following an arch collapse at Glen Canyon National Recreation ... that ...

The popular natural phenomenon - which covered Lake Powell in the Glen Canyon National Recreation ... Park rangers said changing water levels and erosion may have contributed to the collapse.