Two women suffered spinal injuries after falling from a beauty spot above Dovestone Reservoir.
The incident happened at the Trinnacle at Raven Stones just after midday on Sunday (January 23).
It was reported two women had fallen from the edge of the hill onto a path below.
Firefighters, police, ambulance crews, an air ambulance and two mountain rescue teams all rushed to the scene.
A medical assessment determined the women would be treated for spinal injuries due to the height they had fallen from.
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They were packaged in vacuum mattresses and placed on a stretcher before being lifted into a helicopter.
They were then transported to hospital along with a team doctor.
The casualties' companions were escorted off the hill to their car at the main car park.
In a statement issued today, Oldham Mountain Rescue Team said: "Sunday lunchtime, the Team was requested as part of a large multi-agency response to an incident near the Trinnacle at Raven Stones. Initial reports were that 2 females had fallen from the edge onto the path below, their injuries were unknown.
“Due to the information given during the initial 999 calls, multiple resources from various agencies were called, including North West Ambulance Service NHS Trust, Greater Manchester Police, Greater Manchester Fire and Rescue Service (GMFRS), HART. Fortunately, an OMRT member was in the area, so was quickly able to establish the exact location of the incident, and to direct extra personnel to the scene. This also allowed other agencies to be stood down.
“After team medics assessed both casualties, it was determined that, because of the height they had fallen, they would be treated for potential spinal injuries. Due to the hazardous nature of the terrain, assistance from Maritime and Coastguard Agency helicopter with their winching capability was requested.
“At the same time, we contacted our neighbouring team, Holme Valley Mountain Rescue Team, to ask them for assistance with extra personnel in case the helicopter couldn't attend and it turned into a technical rope lower. Thankfully, Rescue 912 from Humberside was tasked, so the casualties were packaged in vacuum mattresses and onto our stretcher before being winched into the helicopter, along with a team doctor, for onward transport to hospital.
“The casualties' companions were walked off the hill to their car at the main car park. We then had to arrange picking up our doctor and 2 stretchers from Sheffield, as well as getting back to base to sort out the mountains of kit that are inevitably involved in a double casualty incident such as this.”