A man was airlifted to hospital after he tumbled 60ft while walking in the Angus glens.
The rescue effort saw volunteers from the Tayside Mountain Rescue Team working alongside police and an RAF rescue helicopter.
“It was around midday. An adult male had slipped 60ft on steep terrain,” said team leader Stuart Johnson.
“He had numerous injuries, including concussion, but he was extracted by his friends and a 137 Squadron aircraft from Lossiemouth.”
Stuart said the man, who was in his thirties and from the local area, was part of a group of experienced hill walkers.
“He was descending the Kilbo Path, which runs from 3000ft all the way down to Glen Doll,” added Stuart.
“The ground was icy and slippy and it’s about a 45 degree slope, which is very steep.
“His friends gave him first aid and then assisted him back to the path where he met the emergency services. He was then airlifted to Ninewells.”
The call was one of two in the same day over the holiday period for members of the mountain rescue team.
Another mission saw them search for more than three hours in “brutal weather” in Perthshire.
“It was called in about 3.30pm,” said Stuart.
“It was a male and female from Ayrshire, a couple in their late twenties who were walking on Beinn Ghlas part of the Ben Lawers mountain range.
“They’d lost their navigation equipment on the mountain in deteriorating weather. They were actually around the summit.”
A rescue helicopter took off from Prestwick, while Tayside Police and 16 members of Tayside Mountain Rescue raced to find the pair.
“The missing persons were located around 6.50pm,” said Stuart, who lives in Kenmore.
“Weather conditions were brutal at that time. It was snow and blizzard conditions on the summit.
“Both persons were suffering from mild hypothermia.
“It was lucky we found them when we did. They would have been struggling to survive if they’d not been found.
“They were able to continue their journey home, but were shaken by the experience.”
The missions took the team’s total for 2013 to 50, which is about their yearly average.
More details of their work can be found on their Facebook page.