Rennibister Earth House

The Iron Age monument was discovered when a threshing machine caused the roof to collapse on 12 November 1926. During the initial examination of the structure, the chamber floor was covered with a large number of skeletal remains, and an ox-scapula, which was probably used as a spade. In all, the disarticulated skeletal remains were determined to be six adults and twelve children, probably belonging to two or three family groups. The site has been in the care of Historic Environment Scotland as a scheduled monument since 1928.

The earth house is located in a farmyard near the southeastern shore of the Bay o' Firth, on the Mainland of Orkney, in Scotland. Access to the underground monument is by ladder to a hatch in the roof. The souterrain has an entrance passage which is 3.5 m long with a drop of around 0.7 m to the floor of the chamber. The chamber is hexagonal in shape and measures 3.3 m, and is 2.5 m in width. The walls were built with a combination of slabs laid on edge and rough masonry. The 1.5 m corbelled roof is supported by four stone pillars. The walls are lined with five small alcoves.