"The pararescuemen credit him for saving the man's life. He provided expert care with limited resource for several hours, ultimately stabilizing, warming and rehydrating the victim," Air Force Master Sgt. Armando Soria said.
Around 3 a.m. Saturday, a helicopter managed to land at the scene, with crews using night-vision goggles to aid in the operation, the Alaska National Guard said.
The man was in stable condition.
Colorado: Camper bitten
A bear clawed its way into a tent and bit a sleeping camper on her arm Thursday night, CNN affiliate KCNC reported.
The woman suffered puncture wounds but was not seriously injured. She called for help, and the bear ran away, KCNC said.
Wyoming: Hikers attacked
Two hikers at Yellowstone National Park were injured Thursday after the encountered a female grizzly bear and a cub. The sow charged the hikers, leaving claw and bite marks on one, park officials said.
The sow and cub left after the hikers sprayed their cans of bear spray.
"Yellowstone bear biologists say the sow's behavior is consistent with purely defensive actions taken after a surprise encounter with people," the park said in a statement. "This was the first report of any bear-caused human injuries in Yellowstone this year."
The park requires visitors to stay 100 yards away from black and grizzly bears and advises hikers to walk in crowds and make noise while on the trail.
Idaho: Researchers assaulted
Two habitat technicians collecting data in Shotgun Valley, Idaho, were injured Thursday when a grizzly bear charged, the Jackson Hole Daily reported.
The bear knocked both men to the ground, biting one researcher on the thigh and backside and the other researcher on the hands, the Daily said.
One of the men used his bear spray, and the grizzly fled the scene.
Why the attacks?
"The reason why we're having bear attacks now is because we have vacationers out in the areas where bears live," said Tom Stalf, CEO of the Columbus Zoo. The bears are "out foraging and looking for food."
Stalf said the migration of humans is another reason for more bear encounters.
"It's called urban sprawl," he said. "As we vacation and we move out of the cities and into the country, we're going to cross paths with different types of animals."
But Harry Reynolds, vice president of the International Association for Bear Research and Management, said sometimes it's just luck.
"I think the recent attacks are circumstance and not any larger outside issue weighing into the attacks," he said. "In past years in Alaska, when there are berry failures, the bears may be more aggressive in looking for food. But this year was a good crop. I really think the recent bear attacks are just circumstance -- people in the wrong time at the wrong place."