Another pair from the archives: skyscrapers of a different sort than I’m used to, in Zion. On my epic 2009 roadtrip I was lucky enough to see a rare ephemeral waterfall, two thousand feet of cascade so powerful that it exhausts itself just a couple of hours after the wall of rain stops, leaving behind only the curtains of green moss and wildflowers that cling to the crevices in the cliffs.