Protesters hang upside-down US flag on El Capitan in Yosemite
February is one of the busiest times of the year at Yosemite National Park thanks to “firefall,” a natural phenomenon that causes a glowing ribbon of water to look like molten lava cascading down El Capitan’s Horsetail Fall. Travelers come from around the world to witness the event at the granite monolith, famed for its …