The walker slipped beyond Castell y Gwynt, centre left, on Glyder Fach. Photo: Alan Butterworth CC-BY-SA-2.0

A walker suffered serious leg injuries after a fall on a Snowdonia mountain.

The 26-year-old was walking with his father on Glyder Fach today when he slid about 90m (300ft) on a narrow section of the route between the Castell y Gwynt and Y Gribin.

The walker slid down the steep southern slope of the mountain.

Ogwen Valley Mountain Rescue Organisation was called out about 1pm.

Chris Lloyd of the team said: “Unfortunately, he suffered a serious injury to his ankle and lower leg.

“Two team members were flown up to the casualty site by the RAF’s 22 Squadron, while other team members were diverted from snow- and ice-climbing in the Ogwen valley.

“The casualty was winched aboard and flown to hospital in Bangor.

“The two team members who had assisted the winchman were dropped back to Oggie base.”

The rescue was the team’s 42nd this year. Mr Lloyd said 2013 is gearing up to be a busy one for the volunteer team. “I think we only reached number 42 in late April or early May last year.”

Ten members were involved in today’s rescue.