sentences:  It can be reached by a day hike from the main valley, and is the most popular area in the Yosemite Wilderness.The Valley provides access to nearby destinations such as the back side of Half Dome, Clouds Rest and the High Sierra Camp at Merced Lake.Little Yosemite Valley is a tread on the glacial stairway of the Merced River that runs from Yosemite Valley up to Mount Lyell, gaining some of vertical elevation over and is situated some in elevation above Yosemite Valley proper.