The avalanche blocked a stretch of Highway 550 between the towns of Silverton and Durango on Monday.
Here's where the luck comes in.
One of the people stuck behind the avalanche was an avalanche educator at the Silverton Avalanche School
and a veteran of what's called heli-skiing, in which skiers are flown via helicopter to remote, untouched slopes.
Michael Barney and his wife, Sallie, were driving home from Durango when they happened upon the scene just minutes after avalanche.
At first, they thought people were digging to clear the road, but quickly realized someone was trapped.
He grabbed two shovels he had in his car and went to help.
Barney says the skier's partner had already located him with a beacon, after which he probed and dug about four feet.
"He had hit his partner's helmet as soon as I got there," Barney said.
At that point, the skier had been buried for about 15 minutes.
"I was able to use my hands to clear around his face and his airway and asked if he could breathe and he said yes," Barney said. "That was a huge relief -- I thought he would be unconscious."
The man was using a device called an AvaLung that makes it easier to breath under the snow.
Barney said that probably saved his life.
"He was okay and he was amazingly not injured and not even that cold," Barney said.
Barney said the skier didn't want to be identified, because he didn't want to worry his loved ones.
The Colorado Avalanche Information Center has recorded almost 400 avalanches since the start of 2017.
There have been no fatalities.