Half Dome, Yosemite National Park Photograph by Jimmy Chin, National GeographicAlex Honnold takes on the third zigzag of Half Dome without a rope. He has just one more difficult section, or pitch, in the last three before reaching the summit.
Alatna River Valley, Gates of the Arctic Photograph by Michael Christopher Brown, National Geographic“I paddled across this deep, slow-moving river in my small pack raft,” says adventurer Andrew Skurka. The Alatna meanders south from the Gates of the Arctic National Park. Download Wallpaper (1600 x 1200 pixels)
Sunset at Lower Lewis River Falls, WA Photograph by Scottyboipdx Weber, My ShotThe sun sets over Lower Lewis River Falls in Washington State’s Gifford Pinchot National Forest. The falls mark a wild and scenic stretch of the river, but other sections of the Lewis, which drains the state’s mighty Cascade Range, boast large dam and reservoir systems. Hydroelectric plants produce power, but they’ve changed the river’s natural character—to the special detriment of migratory fish like salmon. Utilities have agreed to begin trucking fish around the dams along the Lewis River, moving them from below these looming barriers to prime habitat upstream, above the dams.
Desert Rivers, Mexico Photograph by Adriana Franco, Your ShotRivers forming treelike figures on the desert of Baja California, Mexico Download Wallpaper (1600 x 1200 pixels)
Spring Stream, Finland Photograph by Kyle Ueckermann, Your ShotI took this photo at the edge of a small stream in Lehtimaki, Finland. The ice is beginning to melt, revealing the water beneath. Download Wallpaper (1600 x 1200 pixels)
Photo and Caption by Miles Glynn, My ShotA bighorn lamb stands above Hidden Lake in Glacier National Park, Montana
Stream, Seoul Photograph by Greg GirardBuried under an elevated highway for decades, the Cheonggyecheon stream once again flows in the open air through downtown Seoul. A 3.6–mile–long stretch of the stream was restored in 2005.