I hope I remember this correctly, I believe this is an old barley kiln discovered during the archaeological dig at Olistadh on the Rhinns of Islay in June 2024.

During the archaeological dig at the abandoned village of Olistadh on the Rhinns of Islay by Reading University in 2024 they organised an open day for everyone to see what they found and learn more about the site and the dig. The first year students were the guides and did a fantastic job showing us around and explaining what they had found (my group’s guide on the left).