The Western Isles Archaeology Service is run by Comhairle nan Eilean Siar and works closely with Museum nan Eilean. The Archaeologist has responsibility for the care of archaeological sites and monuments throughout the Western Isles.
The work of the Archaeology Service is focused around the Sites and Monuments Record. This is a record of all the known sites and monuments in the islands, and is continually updated and added to.
New information comes into the record from many sources. People bring things they have found, and photographs and descriptions of sites to Museum nan Eilean, and to the archaeologist. Surveys and excavations are carried out in advance of development.
Individual archaeologists and University departments of archaeology do research in the islands, including the Universities of Edinburgh (Calanais), Sheffield and Glasgow.
The service also keeps an eye on all archaeological work happening in the islands, and tries to ensure that results are made available to the public.