Inner Sound, Scotland

The Inner Sound (Scottish Gaelic: An Lighe Rathairseach) is a strait separating the Inner Hebridean islands of Skye, Raasay and South Rona from the Applecross peninsula on the Scottish mainland.

The Inner Sound lies between the thin finger of Raasay Island and the Scottish mainland to the right of centre in this Landsat view.

The Inner Sound includes the deepest section of the UK's territorial waters, with a maximum depth of 1,062 feet (324 metres).[1] An area, over 1 1⁄2 mi (2.4 km) long and up to 1⁄4 mi (400 m) wide, exists below a depth of 960 ft (290 m), with a relatively flat bottom. There is another cleft 828 ft (252 m) deep, separated from the deeper bowl by an area of shallower water.[1] A dive to examine the deeper trench found the bottom to be made up of bioturbated mud, with a steep slope towards the west of up to 60°.[2]

The Inner Sound is the location of BUTEC, a Royal Navy submarine sensor and emissions range.

References
  1. Robinson, A. H. W. (1949). "Deep clefts in the inner sound of Raasay". Scottish Geographical Magazine. 65: 20–25. doi:10.1080/00369224908735399.
  2. Geyer, R.A. (2011). Submersibles and Their Use in Oceanography and Ocean Engineering. Elsevier. p. 263. ISBN 9780080870533.


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