Na h-Eileanan Iasgaich comprise a small uninhabited archipelago in Loch Boisdale, in the south east of the island of South Uist

South Uist

South Uist is an island of the Outer Hebrides in Scotland. In the 2001 census it had a usually resident population of 1,818. There is a nature reserve and a number of sites of archaeological interest, including the only location in Great Britain where prehistoric mummies have been found. The...

, in the Outer Hebrides

Outer Hebrides

The Outer Hebrides also known as the Western Isles and the Long Island, is an island chain off the west coast of Scotland. The islands are geographically contiguous with Comhairle nan Eilean Siar, one of the 32 unitary council areas of Scotland...

, Scotland

Scotland

Scotland is a country that is part of the United Kingdom. Occupying the northern third of the island of Great Britain, it shares a border with England to the south and is bounded by the North Sea to the east, the Atlantic Ocean to the north and west, and the North Channel and Irish Sea to the...

. The individual islands are separated from one another at high tide, but connected to one another at low tide, (although not to their much larger neighbour of South Uist). They are around 50 ha in extent and over 20m at their highest point. Their boundaries are ill defined.

Geography and geology

The islands have a thin soil and a Lewisian gneiss

Lewisian complex

The Lewisian complex or Lewisian Gneiss is a suite of Precambrian metamorphic rocks that outcrop in the northwestern part of Scotland, forming part of the Hebridean Terrane. These rocks are of Archaean and Paleoproterozoic age, ranging from 3.0–1.7 Ga. They form the basement on which the...

 bedrock

Bedrock

In stratigraphy, bedrock is the native consolidated rock underlying the surface of a terrestrial planet, usually the Earth. Above the bedrock is usually an area of broken and weathered unconsolidated rock in the basal subsoil...

.

Their name means "fishing islands" in Scottish Gaelic because they increase greatly in size at low tide, creating a number of fish traps and homes for edible crustacean

Crustacean

Crustaceans form a very large group of arthropods, usually treated as a subphylum, which includes such familiar animals as crabs, lobsters, crayfish, shrimp, krill and barnacles. The 50,000 described species range in size from Stygotantulus stocki at , to the Japanese spider crab with a leg span...

s.

There are five main islands in the group -

• Eileanan Iasgaich Mòr - Great fishing island
• Eileanan Iasgaich Meadhonach - Middling fishing island
• Eileanan Iasgaich Beag - Little fishing island
• Eilean nam Feannag
• Eilean Bàgh Mhic Rois.

Footnotes