A sunset spectacle featuring two mitten-shaped rock formations played out this week at Monument Valley on the Navajo Nation along the Arizona and Utah border.
Twice a year, in late March and mid-September, spectators, photographers and videographers get a visual treat. As the sun sinks, the West Mitten Butte’s shadow crawls across the desert valley floor before climbing up the side of the East Mitten Butte.
The spectacle draws people from around the world to Monument Valley Tribal Park, which already is popular with tourists...