Llanberis Mountain Rescue Team said the man, aged 47, had fallen on the lower slopes of the north ridge of Crib Goch on Saturday.
The man was found unconscious and not breathing and was airlifted to hospital from Dinas Mot, but pronounced dead on arrival.
A Coastguard rescue helicopter from Caernarfon and the North Wales police drone unit were scrambled to find him on Saturday.
Details have only just been released about the weekend tragedy.
A spokesman for North Wales Police said: "The man who died on Crib Goch on Saturday night was 47 and from the West Midlands."