The Carloway Broch is located in a strategic position high above Loch an Duin on the west coast of Lewis. It is one of the best preserved examples of a structure that is only found in Scotland. It is thought to date from 200 BC and remained in use as a stronghold by the local Morrison Clan until the 1500s.

A Broch is an Iron Age structure designed to both impress and defend. Their general layout comprised two concentric stone walls with a stairway or access within the walls to the upper floors. This would have been easily defensible for an extended family and their livestock.