Mirror lake is at the end of Yosemite Valley, as you hike along the Mirror Lake trail from the Pines campgrounds, you eventually walk right underneath Half Dome and fine this small lake that flows out to join Tenaya Creek. The day after this spring storm dumped snow on Yosemite, it was clear blue skies and the trail was a bit marshy in spots. But this view of Mirror Lake and the snow covered cliffs behind it was worth the soggy feet.