A fast-moving brush fire had choked off the only road out of a popular recreation area in the Sierra National Forest. Hundreds of campers were trapped.

The Creek fire, which ignited Friday evening about six miles to the west, had jumped the San Joaquin River and made a run toward the Mammoth Pool Reservoir, where people were enjoying the Labor Day weekend.

“As fire crews and law enforcement were trying to get everybody out, the fire spotted and then basically grew,” said Alex Olow of the U.S. Fire Service. “Exiting out the road wasn’t safe, so people were asked to shelter in place.”

Authorities quickly determined the only way to evacuate them was with a massive airlift done at night as the fire burned unchecked.

That marked the start of a massive multiagency rescue that some officials described as unprecedented in size and scope.

“Our focus was getting the helicopters in and getting as many people out as quickly as possible to save lives,” said Col. Jesse Miller, deputy commander for joint task force domestic support with the California National Guard.

The Guard worked to assemble its teams and line up resources. But by the time it was in a position to send in aircraft, the fire had essentially reached the Mammoth Pool area, said Col. Dave Hall, commander of the 40th Combat Aviation Brigade, which flew the mission.

“The smoke column’s naturally high, very difficult,” Hall recalled. “And we needed some of that essentially to burn down a little bit in order for us to effect a safe rescue.”

At 6:30 p.m., when conditions improved slightly, the Guard launched a CH-47 Chinook and a UH-60 Blackhawk from about 60 kilometers away in Northern California. The helicopters staged in Fresno to receive guidance about where they could approach to pick people up.

A remotely piloted MQ-9 aircraft operated by the Guard’s 163rd Wing based at March Air Reserve Base worked above the site, helping to scout conditions. Personnel identified a small clearing alongside a boat launch road that could be used as an emergency landing zone.

About 8:20 p.m., the helicopters landed at Mammoth Pool.

The seven crew members were greeted by more than 200 campers, many of them clustered on a dock near the boat launch, Hall said. Some had suffered injuries including scrapes, burns and possible broken bones.

But they were ecstatic.

“I spoke with the crew members afterward and they said it was one of the greatest missions they’ve ever done just because of the feeling of relief the individuals who were rescued had,” Hall said. “They were literally giving the crew chiefs hugs as they were boarding the helicopter.”

Rescuers found that some campers had suffered serious burns from the fire as well as scrapes and broken bones.

Some of those at Mammoth Pool described a terrifying scene of driving through flames and finding shelter wherever they could.

Jeremy Remington told ABC30 that he and his family were boating when they went to fill their chest with ice. In less 30 minutes, he said, the fire was roaring toward them.

“The fire completely engulfed everything, all around us,” he said, adding they poured water on their shirts and used them to cover their faces as protection against the smoke and heat.

Two people had suffered life-threatening injuries. They were put in the helicopters first. Then came the 19 “walking wounded,” who needed hospital care but were not considered critical. Crews also prioritized children and those with underlying health conditions, officials said.

“Their focus was on rescuing them, getting them from the point of danger to point of safety and then getting them into the hands of the emergency medical professionals that were on the ground,” Miller said.

Crews dropped off the passengers at Fresno Yosemite International Airport, where a makeshift triage site was set up. There, paramedics assessed injuries and arranged for people to be taken to hospitals, while other emergency workers made sure those who were displaced were matched with shelters.

The helicopters then returned to Mammoth Pool to pick up another load.

By then, between the darkness and thick smoke, conditions had deteriorated again. Not knowing if they’d be able to make it back a third time, the crews loaded as many people into the helicopters as they could — more than 100 passengers in the Chinook and 21 in the Black Hawk, Hall said.

Luckily, they were able to make one more trip, and everyone who wanted to leave was airlifted. Two people chose to stay behind, Olow said.

When the mission was completed about 3 a.m., 214 people and 11 pets had been rescued, Hall said. At least 21 people were taken to hospitals.

“In my career with the Army National Guard, I have not seen an evacuation of this size nor have I heard of anything similar with regards to a fire incident,” Hall said. “So in my book, this is one of the largest events ever.”

But it might not be the last, he said. The fire was 0% contained late Sunday morning and had charred at least 45,500 acres, as evacuation orders continued to multiply.

“We do believe there will be more rescues,” Hall said. “We are posturing crews day and night to support potential rescues. What is unique about the terrain up there is it is a very, very popular camping site and also backpacking site. And because the fire travels very quickly, it is very possible for backpackers and hikers to potentially be stranded.”