Springtime in Yosemite is a perfect time to observe a lunar rainbow or “moonbow” created in the mist of Upper Yosemite Fall when the full moon rises over the granite walls of Yosemite Valley. (Mark Boster / Los Angeles Times)
A group of photographers assembles on Swinging Bridge at 2 a.m. to witness a lunar rainbow. (Mark Boster / Los Angeles Times)
A bracken fern emerges from a long winter’s nap and begins to unfurl its delicate network of lacy leaves and stems on a spring morning beside a trail near the base of Lower Yosemite Fall. (Mark Boster / Los Angeles Times)
Tourists pose for pictures with the roaring waters of Upper and Lower Yosemite Falls in the background. (Mark Boster / Los Angeles Times)
The mist gathers near the base of Bridalveil Fall in Yosemite Valley. (Mark Boster / Los Angeles Times)
Dogwood in the Yosemite Valley begin their springtime debut. The flowers unfold with a yellow-green cast and transform into a brilliant white. (Mark Boster / Los Angeles Times)
Blades of grass push their way through a small pond of water in the Yosemite Valley. (Mark Boster / Los Angeles Times)
