By Team Swandro, Jan 7 2018 03:41PM
Coastal erosion is a big problem all over Orkney – we have over 950km of coastline and get battered by both the Atlantic and the North Sea, not to mention all the tidal races between the islands. The Westness shore in Rousay is particularly exposed, with the tidal races of Eynhallow Sound noted for their ferocity. Many of Orkney's around 135 brochs are now situated right on the shore and actively eroding. I say 'around 135' because no-one's ever agreed on the exact numbers of brochs in Orkney, or for that matter agreed on the exact definition of a broch anywhere. George Petrie did the first survey of Orkney's brochs in 1866 and he managed to list 70 in his Notice of the Brocks or Large Round Towers of Orkney (in Archaeologia Scotia Vol 5, which is something of a broch special and can helpfully be accessed online).
The broch/roundhouse debate all gets a bit technical – broch tower, hollow-walled, ground galleried broch; Atlantic/complex/ massive roundhouse etc. etc. It's easier just to use the term broch as in ‘a big roondie thing from the Iron Age’. I'm definitely with the late Graham Ritchie on this one: 'Even if they are not all Mousa, they are there in the countryside, whatever you call them'.
Mousa is exceptional, whether other brochs were as tall is another of the issues that folk still don’t agree on, but if you are ever in Shetland you really should make the effort to get to it, it's not every day that you get to climb to the top of a tower that's been standing 2,000 years, and even though it's in Shetland it does have an Orkney connection, better still with the Norse earls of Orkney.