Yosemite Nature Notes – Sky Islands (On Tour)
Steven M. Bumgardner
(USA, 2011, 7 min)
Throughout California’s Sierra Nevada, flat plateaus are found at high elevations of twelve and fourteen thousand feet. These isolated “sky islands” are home to rock gardens filled with amazing wildflowers found nowhere else in the world. Botanists in Yosemite National Park are working to document these unique plant communities for the first time before a changing climate drives them to extinction.