A photograph accurately shows a U.S. "distress" flag hung upside down from the side of El Capitan in Yosemite National Park by a group of employees.

Laid-off employees who hung a U.S. flag upside-down at Yosemite National Park say the action was a call to protect the nation's public lands.

A group of workers at California's Yosemite National Park positioned the U.S. flag on Saturday near the Horsetail Fall​ where crowds gather to witness Yosemite's annual firefall​.