Mt. McKinley Rescue
I remember a pilot that rescued a climber on the very top at 20,320 feet.
He told me that a full landing was impossible so he set the front skids on top and held a hover while the climber was loaded in.
His name was Buddy Woods of Palmer Alaska. He was later killed in a crash with his Dehavilland Caribou, I think it was, hauling fuel or cargo.