A tor cairn is a prehistoric cult site occurring in the British Isles, especially in Cornwall and Devon but also in Wales. It consists of a circular enclosure of stones or a platform of loose rocks surrounding a natural tor, sometimes encircled by a ditch. The diameter of the roughly 35 tor cairns ranges from 12 to over 30 metres and their height varies from 0.5 to 4.0 metres. There is usually an entrance to the enclosed area and pits in the ground between the rock outcrop (tor) itself and the enclosure.
- Darvill, Timothy (2008). Oxford Concise Dictionary of Archaeology, 2nd ed., Oxford University Press, Oxford and New York, p. 464. ISBN 978-0-19-953404-3.
- Historic England. "Tor Cairn Forming Part of a Round Cairn Cemetery, and a Stone Hut Circle on the Summit of Cox Tor (1011500)". National Heritage List for England (NHLE). Retrieved 15 June 2017.
- Frances Lynch: Megalithic tombs and Long Barrows in Britain. Shire, Princes Risborough 1997, ISBN 0-7478-0341-2 (Shire archaeology 73).
- Elizabeth Shee Twohig: Irish Megalithic tombs. Shire, Princes Risborough 1990, ISBN 0-7478-0094-4 (Shire archaeology 63).
- Jürgen E. Walkowitz: Das Megalithsyndrom. Vol. 36 in Beiträge zur Ur- und Frühgeschichte Mitteleuropas, 2003, ISBN 9783930036707.