A man was rescued by a Coastguard rescue helicopter after being injured in a 80ft fall from a frozen Snowdon ridge.
Llanberis mountain rescue team was called out to the man who had back, leg and head injuries after the plunge on Crib y Ddysgl.
A smartphone app was used to find his location and rescuers trekked through snow and cloud to the summit of Garnedd Ugain and down the ridge to him.
The casualty was treated for his injuries and sledged down the peak on a stretcher, and winched into the aircraft. He was flown to hospital at Bangor. The Monday night rescue took five hours and involved 16 rescue team volunteers.