YOSEMITE NATIONAL PARK, Calif.—A hiker has been missing in Yosemite National Park since the holiday weekend after being swept away by a cold and fast-flowing creek as California’s epic winter snowpack melts.
Hayden T. Klemenok vanished while backpacking with a group at Upper Chilnualna Falls on Sunday, the National Park Service said in a statement.
“At approximately 2 p.m., he entered Chilnualna Creek near the trail junction, and his whereabouts are currently unknown,” the service said.
The section of creek is about a dozen miles south of Yosemite Valley and features a series of waterfalls and cascades that plunge hundreds of feet….