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Cross dyke on Glaisdale Rigg, 520m and 250m west of Highdale Farm

List Entry Summary

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 Culture, Media and Sport.

Name: Cross dyke on Glaisdale Rigg, 520m and 250m west of Highdale Farm

List entry Number: 1018842

Location

The monument may lie within the boundary of more than one authority.

County: North Yorkshire

District: Scarborough

District Type: District Authority

Parish: Glaisdale

National Park: NORTH YORK MOORS

Grade: Not applicable to this List entry.

Date first scheduled: 04-Feb-1999

Date of most recent amendment: Not applicable to this List entry.

Legacy System Information

The contents of this record have been generated from a legacy data system.

Legacy System: RSM

UID: 32612

Asset Groupings

This list entry does not comprise part of an Asset Grouping. Asset Groupings are not part of the official record but are added later for information.

List entry Description

Summary of Monument

Legacy Record - This information may be included in the List Entry Details.

Reasons for Designation

Cross dykes are substantial linear earthworks typically between 0.2km and 1km long and 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 combinations 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 re-used 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 dykes 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 have survived to the present day and hence all well- preserved examples are considered to be of national importance.

The cross dyke 520m and 250m west of Highdale Farm over Glaisdale Rigg is a relatively well preserved earthwork example of a Bronze Age boundary feature. The bank will overlie and preserve prehistoric soil layers and the ditch will contain a series of infilled sediments which will provide valuable information about the local environment in the Bronze Age. The 40m long section of ditch on the eastern side of the road is of especial importance because the poorer drainage of this area will preserve a wider range of material which will provide additional environmental information. The importance of the cross dyke is enhanced by survival of a second cross dyke, known as Hart Leap, to the north east.

History

Legacy Record - This information may be included in the List Entry Details.

Details

The monument includes the buried and earthwork remains of a prehistoric boundary, a cross dyke, which runs across the spine of the south western part of Glaisdale Rigg. It is in two areas of protection. A second cross dyke, known as Hart Leap which is the subject of a separate scheduling, lies to the north east. The cross dyke can be seen as a boundary running over the rigg separating it from Glaisdale Moor. It runs WNW to ESE across the spine of the rigg as a low bank of varying form with a continuous ditch on its southern side and, along one section, a matching ditch on its northern side. The cross dyke survives in two sections either side of the road which runs along the top of the rigg. The ground on the western side of the road slopes downwards at a fairly constant rate to the WNW until just past a drystone wall where it falls away more rapidly into Great Fryup Dale. For the first 40m to the west of the road, the dyke is formed by a low broad bank between two broad ditches, both about 0.4m deep, giving the dyke a symmetrical cross section. The bases of the ditches are 9m apart and the whole dyke is around 18m wide. There is then a 20m wide break which is considered to be an original causeway through the dyke. After this break the double ditches can be traced for about a further 55m down hill, with the central bank continuing as an intermittent feature. The slope then increases slightly, the northern ditch fades out and the bank becomes more pronounced. Here the bank is typically 0.4m high with a steeper southern face immediately adjacent to the 0.2m deep ditch, the whole dyke being around 9m wide. After just over 100m the dyke fades out about 50m from the drystone wall which marks the boundary of the unenclosed moorland. It is thought that the dyke originally extended to the scarp just beyond this wall. On the eastern side of the road the land slopes down eastwards into Glaisdale, initially quite steeply, then levels out before dropping away again beyond the drystone wall forming the boundary of the moorland. Adjacent to the road there is a broad area of deeply cut parallel trackways, through which there is no trace of the cross dyke. Beyond these tracks there is still no evidence of the cross dyke until the ground starts to level out. There is then a 40m long section of dyke about 11m wide formed by a broad bank 8m wide and 1m high with a ditch to the south which is cut into rising ground. This section of dyke is on a slightly different alignment to the rest, running more east-west. The western end is considered to be an original feature, ending where there is a change of slope. However the eastern end has been removed in an area of shallow workings for iron ore.

MAP EXTRACT The site of the monument is shown on the attached map extract. It includes a 2 metre boundary around the archaeological features, considered to be essential for the monument's support and preservation.

Selected Sources

Books and journals
Harding, A F, Ostoja-Zagorski, J, 'Archaeological Journal' in Prehistoric and Early Medieval Activity on Danby Rigg, N Yorks, , Vol. 151, (1994), 73-82
Vyner, B E, 'CBA Research Report 101: Moorland Monuments' in The Brides Of Place: Cross-Ridge Boundaries Reviewed, (1995), 16-30

National Grid Reference: NZ 72954 03251, NZ 73232 03173

Map

Map
© Crown Copyright and database right 2017. All rights reserved. Ordnance Survey Licence number 100024900.
© British Crown and SeaZone Solutions Limited 2017. All rights reserved. Licence number 102006.006.
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End of official listing