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A towering titan

Mousa is unlike other broch towers – it has the smallest diameter of any, but its walls are far thicker than in others. Its massive build probably explains its excellent state of preservation, and suggests that this has always been an exceptionally tall broch.

We don’t know whether Mousa represents the peak of broch building, or if other towers of similar height and strength once existed but did not survive.

Mousa Broch rising above the rocky shoreline under clear skies, with sunlight highlighting the tower’s drystone construction.
small drystone cottage with a large blue sign outside with reads "Welcome to Mousa nature reserve"
The RSPB nature reserve near the broch.
Interior view looking straight up inside Mousa Broch, showing the conical stone walls tapering toward a bright circular opening at the top.

Statement of Significance

Read our Statement of Significance for Mousa Broch for facts, figures and further reading about to the tower and its history.

Read more

In the sagas

Mousa Broch is mentioned in two historical documents.

Egil’s Saga relates how, in AD 900, an eloping couple from Norway found themselves shipwrecked in Shetland, and sought refuge in ‘Morseyarborg’.

The Orkneyinga Saga recounts how, in AD 1153, a certain Erlend abducted Margaret, the mother of Earl Harold and took her to Morseyarborg ‘where everything had been made ready’. Earl Harold besieged the broch but found it ‘an unhandy place to get at’ for attack.

The Orkneyinga Saga mentions several of our properties in the Orkney and Shetland Islands, including:

  • Cubbie Roo’s Castle

  • Earl’s Bu

  • Eynhallow Chapel

Mousa Broch rising above the rocky shoreline under clear skies, with sunlight highlighting the tower’s drystone construction.

Discover more on trove.scot

See archive photographs of Mousa Broch, plus archaeology notes and more on trove.scot. 

Mousa Broch on trove.scot
A stonemason in HES-branded clothing using a selection of hand tools to work on a piece of carved stone.

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