The man had stepped into a gap between rocks, but had then lost his balance and fallen awkwardly, breaking both bones in his lower leg.
The nature of the terrain, steep and rocky with a covering of felling waste, made movement very difficult, and a stretcher evacuation would have been hazardous and prolonged. With this in mind, assistance from the Coastguard Helicopter, Rescue 936, was requested by the first Team volunteers on scene.
Team casualty carers, along with the winchman paramedic, stabilised the casualty and got him ready for evacuation. He was winched aboard the aircraft and flown to Ysbyty Gwynedd for further treatment.
Everyone was safely off the hill by 7:00 p.m.