Stones 20-23 on the southwest side of the circle, viewed from southeast. The Loch of Harray can be seen in the background. Ring of Brodgar, c. 2500 BC. Mainland, Orkney Islands, Scotland. Measuring nearly 104 m in diameter, this impressive Neolithic monument is a true circle that is thought to have originally consisted of 60 stones. Today 27 stones remain standing, ranging in height from 2.1 m to 4.7 m. The ring is positioned on a scenic strip of land between the freshwater Loch of Harray (to NE) and the saltwater Loch of Stenness (to SW).