Hidden deep in Arkansas' Ozark Mountains is a short but challenging forest trail that rewards hikers with a dramatic ...

Boulder, Colo., USA: Deep pools below waterfalls are popular recreational swimming spots, but sometimes they can be partially or completely filled with sediment. New research showed how and why pools ...

Waterfalls form through various geological processes, but they all involve water flowing over a sudden drop in elevation. Understanding why these drops exist in the first place reveals how landscapes ...