The U.S. Bureau of Reclamation should start planning to modify the Glen Canyon Dam, which plugs the Colorado to form Lake ...

Emerald Cave, also known as Emerald Cove, shimmers with luminous green light. Here's the best time to visit Emerald Cave and how to get there.

Go inside the Glen Canyon Dam on this exclusive tour to learn how it makes power and why it’s in danger Glen Canyon Dam on Lake Powell produces affordable, carbon-free hydropower for seven states.

To critics, Glen Canyon Dam was one of the U.S.'s biggest environmental mistakes. But it generates electricity for about 5 million people in seven states.

Planning a trip to Arizona? I’m quite sure the Grand Canyon probably features on your itinerary as it is probably the most famous Arizona landmark. However, Arizona has many fantastic landmarks that ...

Insider tip: The Glen Canyon Natural History Association offers 45-minute guided tours of Glen Canyon Dam year round. Need a break? Play the USA TODAY Daily Crossword Puzzle.

Modifying the dam would give water managers greater flexibility in dry years, and it would allow Glen Canyon to continue its ecological rebirth.

At dead pool, the 27 million people who rely on Colorado River water downstream from the dam would likely be forced to reduce water use quickly and involuntarily. But Lake Powell would still stretch ...

Modifying the dam would give water managers greater flexibility in dry years, and it would allow Glen Canyon to continue its ecological rebirth.

The Glen Canyon Dam holds back Colorado River water to create Lake Powell in Page, Arizona on April 15, 2023. The flight for aerial photography was provided by LightHawk.

The river outlet pipes inside Glen Canyon Dam are getting a $9 million repair job, but conservation groups want to see more permanent changes at Lake Powell.