Hyskeir lies in the southern entrance to
the Minch, 11 kilometres southwest of the island of
Canna and 14 kilometres west of
Rùm.
Garbh Sgeir is a rock that lies next to the islet and the landing place for Hyskeir lies in the channel between the two. Both islands are unoccupied. Òigh-sgeir is composed of hexagonal
pitchstone columns. The owner of the island in the 19th and early 20th centuries was Philip Ollas. At that time sheep from Canna were brought to make use of the summer grazing. ==Etymology==