Coming Down the Mountain: How Changes in the Water Cycle are Affecting Mountain Ecosystems

  As plants take in sunlight and carbon dioxide to grow, they also respire or “breath” out part of that carbon dioxide back to the atmosphere. When this occurs belowground from the plant’s roots, it’s

People peer through a natural window in the castellated cliffs…



People peer through a natural window in the castellated cliffs above the river in White Cliffs, Montana, 1971. Photograph by Volkmar K. Wentzel, National Geographic Creative

People peer through a natural window in the castellated cliffs…



People peer through a natural window in the castellated cliffs above the river in White Cliffs, Montana, 1971. Photograph by Volkmar K. Wentzel, National Geographic Creative

A Native American sends smoke signals in Montana, June…



A Native American sends smoke signals in Montana, June 1909.Photograph by Dr. Joseph K. Dixon, National Geographic Creative