Yosemite Valley , California, Wallpaper, National Geographic. 優勝美地山谷 ，加利福尼亞州，壁紙，國家地理雜誌。

Photograph by Larry Fellows, Arizona Geological Survey
Yosemite Valley Picture, Yosemite Wallpaper, Download, Photos -- National Geographic http://science.nationalgeographic.com/science/wallpaper/yosemite-valley.html