Linga is made up of sandstone, subjected to ancient glacial erosion.
Linga is to the north east of Vaila, in Vaila Sound surrounded by Mainland, Shetland on three sides. The Holm of Breibister is to the west, the Baa of Linga to the south (baa is a Shetland word for a sunken rock).
Linga was inhabited up until the mid 20th century. it is recorded that there were two inhabitants in 1931, after growing steadily during the 19th century. In 1841, it is recorded that nine people were living there, which had grown to 13 in 1881.