Castle Law, ForgandennyThis Iron Age-style hillfort has been excavated in Victorian times and since

Castle Law, Forgandenny

This Iron Age-style hillfort has been excavated in Victorian times and since then the walls at the top have been exposed, creating this fascinating pattern. From the ground all we could see was parallel lines, but from the air this hillfort truly comes to life. It is a timber-laced hillfort, just like the nearby Castlelaw near Abernethy, a technique which originated in Switzerland according to some archaeologists and may reflect an influx of incomers to the British Isles from the continent. There’s a full hillfort tour up on my channel.