There are twenty duns, or ancient forts, in Tiree, it is said, but I have only seen eight, and examined two [..]. These duns, in the popular imagination, are all connected with Ossian's heroes, and I have had some difficulty in convincing the people that I am not in search of gold. There is a rhyme which says that Fionn left his gold in Dun Shiatar, which is situated near Hynish.
Ancient Sculpturings In Tiree. By Ludovic Maclellan Mann. From the Proceedings of the Society of Antiquaries of Scotland, Vol. 56
February 13, 1922.
The article mentions (with illustrations) cup marked stones at Gott Bay, Cornaigmore, Cuigeas, including some on a Standing-stone at Balinoe and others on the natural rock surface of floor of Kirkapoll Chapel.
Middleton Standing Stone is a granite standing stone erected in a field WNW of Barrapol, Isle of Tiree. It has a broad base c. 1.0m x 0.7m according to Canmore ID 21473 (go to Links) rising to a broad point at 1.6m. The stone is 200m NW of Clachan Dubh, a thatched roof house in Barrapol.
Directions: From Scarinish, the largest village in Tiree, take the B8065 coast road heading W for c. 5 miles until you reach a junction with the B8066. Turn right for Heylipol. After c. 130 yards bear sharp left avoiding the B8066 Cornaig. Continue on the B8065 through Heylipol for 1.25 miles until you reach a crossroads. Go straight on following the B8065. Continue through the sparse community of Barrapol for c. 1.1 miles until you reach a thatched cottage, Clachan Dubh, on the right. There is room to park at the croft buildings adjacent to the cottage. A farm track starts just W of the cottage. Follow parallel to the road for 70 yards then turn right following a farm track NW for 150 yards. Middleton Standing Stone is 20 yards W from this point.