At the end of Saddell bay is Pluck Wood, and the remains of Kildonan Dun, a late Iron Age hillfort, dating from no earlier than 200BC, and made from Stone.

In contrast to the mostly round Duns, it has a D-shaped ground plan, like Barsalloch Fort and Castle Haven, in Galloway.
The Dun measures about 19 m × 13 m (62 ft × 43 ft) within the outer two, one meter high and two meter thick ring wall.
The impressive entrance with the well-recognizable door construction is located in the south-west.
The double staircase on the rampart, located within the wall on the west side, and a round wall niche in the north east are intact.
In form and design some novelties are shown, as occurred with Brochs in the same period.

The excavation of Dun Kildonan between 1936 and 1938 resulted in a precise chronology.
Objects from the 1st and 2nd centuries demonstrate the time of construction of the dun, while objects from the 6th and 9th to 12th century or from later times show that the central square also remained an important focus.
The finds are located in the Campbeltown Museum.
At the end of Saddell bay is Pluck Wood, and the remains of Kildonan Dun, a late Iron Age hillfort, dating from no earlier than 200BC, and made from Stone.
In contrast to the mostly round Duns, it has a D-shaped ground plan, like Barsalloch Fort and Castle Haven, in Galloway. The Dun measures about 19 m × 13 m (62 ft × 43 ft) within the outer two, one meter high and two meter thick ring wall. The impressive entrance with the well-recognizable door construction is located in the south-west. The double staircase on the rampart, located within the wall on the west side, and a round wall niche in the north east are intact. In form and design some novelties are shown, as occurred with Brochs in the same period.
The excavation of Dun Kildonan between 1936 and 1938 resulted in a precise chronology. Objects from the 1st and 2nd centuries demonstrate the time of construction of the dun, while objects from the 6th and 9th to 12th century or from later times show that the central square also remained an important focus. The finds are located in the Campbeltown Museum.
Saddell