Cross-ridge dyke on Rawston Down
Heritage Category: Scheduled Monument
List Entry Number: 1002462
Date first listed: 12-Jul-1961
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This copy shows the entry on 11-Dec-2018 at 02:49:34.
The building or site itself may lie within the boundary of more than one authority.
District: North Dorset (District Authority)
Parish: Tarrant Rawston
National Grid Reference: ST 91801 06437, ST 91827 06553
Part of a cross-ridge dyke 750m north west of Down Barn.
Reasons for Designation
Cranborne Chase is an area of chalkland well known for its high number, density and diversity of archaeological remains. These include a rare combination of Neolithic and Early Bronze Age sites, comprising one of the largest concentrations of burial monuments in England, the largest known cursus (a linear ritual monument) and a significant number and range of henge monuments (Late Neolithic ceremonial centres). Other important remains include a variety of enclosures, settlements, field systems and linear boundaries which date throughout prehistory and into the Romano-British and medieval periods. This high level of survival of archaeological remains is due largely to the later history of the Chase. Cranborne Chase formed a Royal Hunting Ground from at least Norman times, and much of the archaeological survival within the area resulted from associated laws controlling land-use which applied until 1830. The unique archaeological character of the Chase has attracted much attention over the years, notably during the later 19th century, by the pioneering work on the Chase of General Pitt-Rivers, Sir Richard Colt Hoare and Edward Cunnington, often regarded as the fathers of British archaeology. Archaeological investigations have continued throughout the 20th century and to the present day. Cross ridge dykes are substantial linear earthworks typically between 0.2km long and 1km long, comprising one or more ditches arranged beside and parallel to one or more banks. They generally occur in upland situations, running across ridges and spurs. They are recognised as earthworks or as cropmarks on aerial photographs, or as a combination of both. The evidence of excavation and analogy with associated monuments demonstrates that their construction spans the millennium from the Middle Bronze Age, although they may have been reused later. Current information favours the view that they were used as territorial boundary markers, probably demarcating land allotment within communities, although they may also have been used as trackways, cattle droveways or defensive earthworks. Cross ridge dykes occur across Cranborne Chase and are one of the few monument types which illustrate how land was divided up in the prehistoric period. They are of considerable importance for any analysis of settlement and land use in the Bronze Age. Very few examples have survived to the present day nationally and all well-preserved examples are considered to be of national importance. The number of well-preserved examples within Cranborne Chase is particularly notable. The part of a cross-ridge dyke 750m north west of Down Barn survives well and will contain archaeological and environmental evidence relating to its construction, development, longevity, function, social organisation, territorial significance, agricultural practices and overall landscape context.
This record was the subject of a minor enhancement on 11 February 2016. This record has been generated from an "old county number" (OCN) scheduling record. These are monuments that were not reviewed under the Monuments Protection Programme and are some of our oldest designation records.
This monument, which falls into two separate areas, includes part of an extensive cross ridge dyke situated across the summit of a prominent ridge which forms the watershed between the valleys of the River Stour and The Tarrant. The dyke survives differentially as a length of medial ditch of up to 7.6m wide and 0.9m deep flanked by two low spread banks or as a series of buried features visible as crop and soil marks.
The contents of this record have been generated from a legacy data system.
Legacy System number: DO 614
Legacy System: RSM - OCN
This monument is scheduled under the Ancient Monuments and Archaeological Areas Act 1979 as amended as it appears to the Secretary of State to be of national importance. This entry is a copy, the original is held by the Department for Digital, Culture, Media and Sport.
End of official listing