Yep, the last snow cave was the 6th or 7th they dug. I only quoted a part of the article (but gave the link).
A great story - 3 teenagers, leave their map in the car, get lost, dig 6 or 7 snow caves, two fall into crevasses & rescue themselves, on Hood 16 days and were never afraid.
They only dug 3 caves, the last of which had a tunnel that was 45 feet long by the time the storm was over. And they were VERY afraid.