Seanna Chnoc
Seanna Chnoc, also known as Seana Bheinn is an islet in outer Loch Ròg, Lewis, Scotland. It lies north west of Great Bernera and Bearasaigh.
Stac nam Balg lies offshore to the north and there is a cave in the north west of the island.
There is no regular access to the island although boat excursions are available locally.
The island appears to have been called Garvilan in the early 19th century and in 1549, Dean Monro wrote: "Besides the coist of Leozus towards the said north-west lyis ane Ile callit Garvellan, gude for store and fishing, perteining to Mccloyd of Leozus".
