In 1963, the waters began rising behind Glen Canyon Dam and 170 miles of the Colorado River slowly disappeared as the riverbed and surrounding canyons filled with water. Both those who supported and opposed the dam considered it a longterm transformation, and Glen Canyon as dead and gone forever. But it’s coming back, in a bittersweet victory that is also the result of the pervasive disaster of climate change. Byron Wolfe, Mark Klett, and Rebecca Solnit spent years exploring the place as the river reemerged at the upper end of the reservoir. What they found is here in photographs and words.