Experts are planning to record and protect exposed Roman masonry at a fort in south Cumbria.
The work on Ambleside Roman fort at Waterhead, is being undertaken by the National Trust, with the help of volunteer archaeologists.
Masons will remove the turf capping from the low walls of the fort, rake out earth, then mix and apply lime mortar to create a hard wearing cap.
The work is part of a wider scheme called "Romans by the River".
Jamie Lund, an archaeologist with the National Trust, said: "The aim of the work is to conserve and protect the exposed Roman masonry and show the building foundations inside the fort to enable visitors to understand the archaeology of the site."
The National Trust is inviting any local people with an interest in either archaeology or traditional heritage building techniques to lend a hand on site.
Visitors to Ambleside Roman fort will be able to see work in progress throughout the entire 12-day event at the start of August.