The St Kilda volcanic archipelago, uninhabited since 1930, bears the evidence of more than 2,000 years of human occupation in the extreme conditions prevalent in the Hebrides, the remotest part of the British Isles. Human vestiges include built structures and field systems, the cleits and the traditional Highland stone houses. They feature the vulnerable remains of a subsistence economy based on the products of birds, agriculture and sheep farming. St Kilda was inscribed on UNESCO's World Heritage List in 1986. St Kilda Archipelago is one of the ten sites included in the Scottish Ten project, a partnership project between CyArk, Historic Scotland, and The Glasgow's School of Art's Digital Design Studio. In July 2011, a team from Historic Scotland and the Digital Design Studio of The Glasgow School of Art, known collectively as the Centre for Digital Documentation and Visualisation LLP, terrestrially scanned the cultural remains on the island of Hirta within the archipelago as part of the Scottish Ten. The Scottish Ten ambitiously strives to create accurate digital models of Scotland's five UNESCO designated World Heritage Sites and five international heritage sites over the course of five years. Along with St Kilda, the Scottish Ten will also digitally document the remaining four sites in Scotland - the Antonine Wall; the Heart of Neolithic Orkney; the Old and New Towns of Edinburgh; and New Lanark - as well as five international heritage sites. The digital documentation data for this project was acquired in July, 2011. For more information about the St Kilda Archipelago, visit the National Trust for Scotland's website.