The 66-year-old man, thought to be a visitor from England, was on Carn Mor Dearg in the Grampians.
Ten rescuers and a helicopter retrieved his body.
Other walkers were led to safety at lunchtime on Sunday.
A report will be sent to the Procurator Fiscal.
Iain Murray, of Lochaber mountain rescue team, said: “He fell a considerable distance in a very steep place.
“I believe he had two of his sons with him and so this is particularly tragic event for them.”
Two hours later, the coastguard helicopter rescued a man and a woman in their 20s at the same ridge, which links the mountain to Ben Nevis.
One had got stuck with nerves over their climb.
Meanwhile Lochaber MRT is heading for a record year of call outs having now answered 114 – just 18 short of their highest total.
Among the recent call outs was to a hypothermic two-year-old child being carried in a back pack up Ben Nevis by his parents.
The father, who was in shorts and a t-shirt, was also showing signs of suffering from the wind and the wet.