Multimedia - 70 years of montane forest change in Grand Canyon National Park: Resurveying 1935 plots

The chance rediscovery in Grand Canyon National Park (GRCA) of an early 1900s dataset used to create the park’s first vegetation map led to a rare opportunity to examine forest change in the park since 1935. In 2004, ecologist John Vankat led an effort to resample the historical plots, and shares his conclusions about forest development and the wide range of ecological conditions characterizing GRCA ponderosa pine, mixed conifer, and spruce-fir forests.

See the Post-1935 Changes in Forest Vegetation of Grand Canyon National Park project page for additional information about this study.