Federal officials have discovered damage inside Glen Canyon Dam that could force limits on ... pumps and other structures. Under certain flow conditions, cavitation can pit and tear into metal ...

Plumbing problems at Glen Canyon Dam, the dam holding back the second-largest reservoir in the U.S., are spurring concerns about future water delivery issues to Southwestern states supplied by the ...

But when the Glen Canyon Dam was built in 1963, it created Lake Powell for river water storage and drowned the native flora in Glen Canyon and its many side canyons.

GRAND CANYON NATIONAL PARK, Ariz.— Federal researchers reported Wednesday that despite last fall’s eradication efforts the number of invasive smallmouth bass more than doubled in the Colorado River ...