Almost everyone is now accounted for after dozens of hikers were airlifted to safety, an official says.
"It was a beautiful day - and then people were screaming," one hiker tells the BBC, as 14 people are missing.
About 15 people are thought to be missing or unaccounted for after flash flooding swept through parts of the iconic landmark.
Non-residents will soon have to pay $100 per person to enter 11 of the United States' most popular parks.
Historians and hikers are mourning the loss of the breathtaking site, which has burned down once before.
The park was forced to cancel overnight hotel stays ahead of a busy long weekend due to an ageing water pipeline.
Jonathan Udall was one of five Britons killed after the craft crashed and burst into flames in 2018.
The teenager suffered serious injuries when he plunged nearly 100ft (30m).
Tread the Globe travel across North America in Trudy, their 18-year-old Fiat Ducato.
