Walkers heading for Schiehallion will face path closures and diversions while repairs take place.
Contractors will carry out work on the munro, beginning on Wednesday.
The John Muir Trust, which owns the mountain, said repair work will start on the new low-level Foss Loop easy-access path near Schiehallion following a storm earlier in the year.
It said the Foss Loop will be closed for three days from Wednesday for the essential repairs. During this, there will also be a diversion for the main Schiehallion path, through a field and along a hilltrack. Maps and diversion signs will be available on site, but parking spaces at the Braes of Foss car park will be reduced.
Land manager Liz Auty said: “It is unfortunate that these repairs are coming just as we’re expecting a few more visitors as lockdown eases.
“Our aim is to make the new Foss Loop path safe as soon as possible, with the minimum of disruption. There will be reduced parking during the works so walkers may wish to plan a trip to another location to avoid disruption.”
The trust said it will also carry out repair work on the mountain path this summer. It will be closed for two days – provisionally 20 and 27 July, weather depending – when a helicopter lift will bring stone into the site which will be used to build steps and drainage features.