Federal officials have discovered damage inside Glen Canyon Dam that could force limits on how much Colorado River water is released at low reservoir levels, raising risks the Southwest could face ...

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 ...

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.