IntroductionPeat has been used as a fuel and as an additive to arable fields to aid fertility since prehistoric times in many parts of northern Europe (e.g. Fenton 1986; Whittle et al. 1986). The cutting of deep peat and the construction of peat stacks as part of the drying process has been documented from Medieval times, but the antiquity of such activities is unknown. Peat stacks are ephemeral structures whose purpose is to aid the drying of hard-won, wet peat in areas where other fuels such as wood and coal are expensive or unobtainable. They are typically cleared within a few months of construction and leave no traces of their former presence. Here we report the unprecedented discovery of a ‘fossil’ pyramidal peat stack dating to the 2nd millennium BC, from the Isle of Barra in the Outer Hebrides of Scotland. Individual turves contained finger and thumb impressions and pollen analysis reveals environmental conditions at around the time of cutting. The method of extracting and stacking the peat used some 3500 years ago may be similar to that used today.
The Early Iron Age enclosures and associated sites on Sutton Common on the western edge of the Humberhead Levels contain an exceptional variety of archaeological data of importance not only to the region but for the study of later prehistory in the British Isles. Few other later prehistoric British sites outside the East Anglian fens and the Somerset Levels have thus far produced the quantity and quality of organically preserved archaeological materials that have been found, despite the small scale of the investigations to date. The excavations have provided an opportunity to integrate a variety of environmental analyses, of wood, pollen, beetles, waterlogged and carbonised plant remains, and of soil micromorphology, to address archaeological questions about the character, use, and environment of this Early Iron Age marsh fort. The site is comprised of a timber palisaded enclosure and a succeeding multivallate enclosure linked to a smaller enclosure by a timber alignment across a palaeochannel, with associated finds ranging in date from the Middle Bronze Age to the Roman and medieval periods. Among the four adjacent archaeological sites is an Early Mesolithic occupation site, also with organic preservation, and there is a Late Neolithic site beneath the large enclosure. Desiccation throughout the common is leading to the damage and loss of wooden and organic remains. It is hoped that the publication of these results, of investigations between 1987 and 1993, will lead to a fuller investigation taking place.
The Hebridean blackhouse is a well-known part of the eighteenth and nineteenth century landscape of the Western Isles, described by numerous early travellers and preserved for posterity at Arnol in Lewis. Survey and excavation of blackhouses on the Isle of Barra, however, suggests that here at least, the majority of blackhouses did not conform to the 'norm' of a long building with accommodation shared by animals and humans. Despite the large families of the Catholic population of Barra, the houses are shorter and provide less internal space than blackhouses further north in the island chain. Animals were more often housed in separate byres. Similarly, the human use of space in the Barra blackhouses shows some variations from the pattern described by nineteenth century sources. As to the origins of the blackhouse, unexcavated sites on Barra suggest two possible future routes of enquiry.
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