John Muir Trust volunteers have carried out 5,600 hours of conservation work in the countryside this year, the organisation has said.
The figure - which is a record - has included cleaning up litter from otherwise unspoiled locations around Scotland from the Western Isles to the Borders, plus one location in Iceland.
Helpers picked up 654 bags of rubbish and helped maintain 20 footpaths, efforts for which those who go walking
in their winter jackets
over the next few months may appreciate.
One volunteer, Roana McAlpine, described how she enjoys work parties, although she may have benefited from having thermal gloves
on when picking litter off Ben Nevis in August.
She said: "It was blowing a gale at the summit and so cold my fingers were freezing. l love the hills but it was extremely difficult to pick up any litter."
The Trust owns the top of Britain's highest mountain and other areas nearby - including the land on which the Steall Bridge is located.
Last year the Trust had to repair the wire crossing after it was snapped by four people trying to cross on it at once.