Newly discovered damage to part of the dam holding back America's second-largest reservoir has people who rely on the Colorado River worried about their ability to get the water they need.

Damage to Glen Canyon Dam reveals vulnerabilities of the entire Colorado River system Recently discovered issues could affect how Upper Basin states deliver water to Lower Basin states.

Plumbing issues at Glen Canyon Dam, which holds back the second-largest reservoir in the U.S., are causing concerns about future water delivery to southwestern states.

Glen Canyon Dam's generating turbines are powered by water in Lake Powell, the declining Colorado River reservoir that straddles the Arizona-Utah line and relies largely on Rocky Mountain snowmelt.

The Colorado River's decline threatens hydropower at Glen Canyon Dam. Now, officials are looking at retooling the dam to deal with low water levels.

As Gus Levy traipses across the 710-foot-tall Glen Canyon Dam, there's a bounce in his step as he details the complicated workings of this structure built in 1960.

Decades into a megadrought, proponents of mothballing the 710-foot dam say now is the time to drastically rethink management of the depleted Colorado River.

These historical morsels help non-outdoorsy types understand what river lovers lost when Glen Canyon and the Colorado River were slowly drowned by Lake Powell throughout the 1960s and 1970s.

Keeping the Colorado River flowing. Environmental groups are sounding the alarm about a problem upstream.

It’s time to drill holes in Glen Canyon Dam on the Colorado River and empty Lake Powell.

Damage found inside Glen Canyon Dam increases water risks on the Colorado River In this 2022 photo, Lake Powell sits at low levels behind Glen Canyon Dam on the Colorado River in Page, Ariz.

These historical morsels help non-outdoorsy types understand what river lovers lost when Glen Canyon and the Colorado River were slowly drowned by Lake Powell throughout the 1960s and 1970s.