Walkers are being invited to join a torchlight trek up the most southerly munro to help fund path repairs.
Rangers from the National Trust for Scotland, which cares for Ben Lomond, will lead the twilight walk up the mountain on Saturday.
The cash will also be shared with Lomond Mountain Rescue Team, which covers the mountain and the surrounding area.
Property manager Alasdair Eckersall said: “The name Ben Lomond translates as Beacon Hill in Gaelic.
“We’ll pay a bit of homage to this while on the summit by shining a torchlight beacon out to the world, and see what responses we get back, before the challenge of walking back down by torchlight.”
The mountain is ascended by more than 30,000 people each year. The charity spends £15,000 annually to keep its footpaths in order. The National Trust for Scotland said it costs £37 to repair one metre of path.
The Ben Lomond Torchlight Challenge takes place on Saturday 19 September, starting at 4pm and is expected to conclude about midnight. It costs £10 to get involved and places can be booked by calling Alison on 0141 616 2266.
The National Trust for Scotland cares for some of Scotland’s best mountain landscapes including Ben Lawers, the Grey Mare’s Tail, Torridon, Kintail and West Affric, Goatfell, Glen Coe and Mar Lodge Estate. The trust’s upland path team work outside in all weathers to protect the landscapes.