Daisy the St Bernard collapsed as she walked on Scafell Pike in the Lake District and refused to move.
It was important to get him on a stretcher as quickly as possible as the weather had to deteriorate as the day progressed.
The four-year-old canine, weighing 55 kg (8.66 stone), was fed and kept hydrated by its owners while awaiting the arrival of members of the Wasdale Mountain rescue team.
The group rescues injured canines about a dozen times a year, but this was the first time they’ve been asked to retrieve a St Bernard.
After asking vets for advice on pain relief, they discovered that if Daisy “didn’t want to do something, she wasn’t going to do it.”
“It quickly (became) clear that Daisy’s cooperation was going to be essential if we were to move forward,” the team said on Facebook.
With the help of “a little persuasion” and “a lot” of treats, they were able to administer pain relief.
After that, “Daisy settled down very quickly, her chin resting on the head guard, realizing that we were trying to help her,” they added. In general, she was “extremely placid and docile”.
Therefore, the operation was “not so different from a normal evacuation of adults.”
A total of 16 team members were involved in the rescue, which lasted five hours and ended at 10:30 p.m.
Daisy had “a rough start to life,” the team said, and was rescued by her current owners a few months ago.
Since coming down from the mountain, she has slept well, snores a little louder than usual and has returned to her “normal mood”.
The St Bernard is a large working dog breed from the Western Alps in Italy and Switzerland.
They were originally bred for the rescue by the hospice of the Great St. Bernard Pass on the Italian-Swiss border.