Rescue underway after woman plunges 30m from cliff in Blue Mountains National Park

A major rescue operation is underway after a woman plunged about 30m down a cliff face in the Blue Mountains National Park.

Emergency crews were called to Ben Trovato Wall about 11am on Saturday after a woman, believed to be in her 30s, fell while climbing or hiking with a group of people.

Multiple crews are at the scene, including Special Operations paramedics and the medical team aboard the Toll Ambulance Rescue Helicopter.

The woman is yet to be retrieved from the cliff face or transported to hospital.