Yosemite Nature Notes: Moonbows

Those nights that coincide with the full moon over Yosemite National Park bring out an unusual park visitor, one who goes in search of "moonbows" that rise above the park's waterfalls. Park videographer Steven Bumgardner, who has compiled an amazing library of videos examining everything from Yosemite's glaciers to frazil ice, now focuses on these colorful ribbons that appear under the full moons of spring and early summer.