The Wahweap Marina floats on Lake Powell at the Glen Canyon National Recreation Area, Wednesday, July 15, 2026, near Page, Ariz. (AP Photo/John Locher)

People view the Glen Canyon Dam from a viewpoint above the Colorado River, Tuesday, July 14, 2026, in Page, Ariz. (AP Photo/John Locher)

People look at the Glen Canyon Dam, Tuesday, July 14, 2026, near Page, Nev. (AP Photo/John Locher)

Boaters swim in a canyon on Lake Powell at the Glen Canyon National Recreation Area, Wednesday, July 15, 2026, near Page, Ariz. (AP Photo/John Locher)

People paddle through a canyon on Lake Powell at the Glen Canyon National Recreation Area, Wednesday, July 15, 2026, near Page, Ariz. (AP Photo/John Locher)

People ride a golf cart beneath a protruding dock used during higher water levels at the Antelope Point Marina on Lake Powell at the Glen Canyon National Recreation Area, Tuesday, July 14, 2026, near Page, Ariz. (AP Photo/John Locher)

Maria Max rests while camping along Lake Powell at the Glen Canyon National Recreation Area, Wednesday, July 15, 2026, near Big Water, Utah. (AP Photo/John Locher)

Mark Budzko rubs his eyes as he wakes up while camping beside Lake Powell at the Glen Canyon National Recreation Area, Wednesday, July 15, 2026, near Big Water, Utah. (AP Photo/John Locher)