At Glen Canyon, receding waters reveal a cathedral ─ and shift debate

TONY DAVIS Arizona Daily Star
Editor’s note: This is part of a series on “Colorado River reckoning: Not enough water,” an investigative series by the Arizona Daily Star that observes, at length, the future of the Colorado River.
It was a scene many Southwestern water experts thought they’d never see.
Certainly not at Lake Powell, the nation’s second biggest reservoir, playground for millions of boaters and fishers each year. It’s a place both beloved and hated after its creation three generations ago — by damming the Colorado River — obliterated a transcendent natural landscape with water hundreds of feet high.
But there it was, in a small side canyon, maybe six miles upstream of the main lake — a marvel that had been underwater for most of six decades: A ribbon of water tumbled down a 75-foot-tall slickrock face in a massive grotto of red, pink and orange Navajo sandstone.
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It is a place aptly named Cathedral in the Desert before the U.S. built Glen Canyon Dam and flooded it out.
Dark streaks of “desert varnish” above