Stac an Armin is a sea stack in the St Kilda archipelago. It is 196 metres tall, qualifying it as a Marilyn. It is the highest sea stack in Scotland and the British Isles.
Stac an Armin geograph.org.uk 4575575
Stac an Armin with Boreray to the left and Stac Lee beyond at right
Boreray with Stac an Armin (left) and Stac Lee (right)
Mounted great auk, Natural History Museum, London
Stac Lee is a sea stack in the St Kilda group off the west coast of Scotland. An island Marilyn, it is home to part of the world's largest colony of northern gannet.
Stac an Armin
…exist to protect the bird habitats and breeding grounds. Stac an Armin is 400 metres (1⁄4 mi) north of Boreray and near the 172-metre-high (564-foot) Stac Lee. Stac an Armin is separated from Boreray by a channel "so littered with rocks" that it should not be sailed, though sailors write passionately about…
A St Kildan landing on Stac Lee (1901)
Stac Lee (right) and Boreray