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Allenheads lead ore works

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: Allenheads lead ore works

List entry Number: 1016348

Location

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

County:

District: Northumberland

District Type: Unitary Authority

Parish: Allendale

National Park: Not applicable to this List entry.

Grade: Not applicable to this List entry.

Date first scheduled: 09-Dec-1997

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: 28548

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

Approximately 10,000 lead industry sites are estimated to survive in England, spanning nearly three millennia of mining history from the later Bronze Age (c.1000 BC) until the present day, though before the Roman period it is likely to have been on a small scale. Two hundred and fifty one lead industry sites, representing approximately 2.5% of the estimated national archaeological resource for the industry, have been identified as being of national importance. This selection of nationally important monuments, compiled and assessed through a comprehensive survey of the lead industry, is designed to represent the industry's chronological depth, technological breadth and regional diversity. The ore works were an essential part of a lead mining site, where the mixture of ore and waste rock extracted from the ground were separated (`dressed') to form a smeltable concentrate. The range of processes used can be summarised as: picking out of clean lumps of ore and waste; breaking down of lumps to smaller size (either by manual hammering or by mechanical crushing); sorting of broken material by size; separation of gravel sized material by shaking on a sieve in a tub of water (`jigging'); and separation of finer material by washing away the lighter waste in a current of water (`buddling'). The field remains of ore works include the remains of crushing devices, separating structures and tanks, tips of distinctive waste from the various processes, together with associated water supply and power installations, such as wheel pits and, more rarely, steam engine houses. Simple ore dressing devices had been developed by the 16th century, but the large majority of separate ore works sites date from the 18th and 19th centuries, during which period the technology used evolved rapidly. Ore works represent an essential stage in the production of metallic lead, an industry in which Britain was a world leader in the 18th and 19th centuries. Sites are common in all lead mining areas and a sample of the best preserved sites (covering the regional, chronological, and typological variety of the class) will merit protection.

The remains of the lead ore works at Allenheads are reasonably well preserved and are important as an unmodified example of a 19th century dressing floor. The survival of the associated bouse teams enhances the importance of the monument.

History

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

Details

The monument includes the western part of the lead ore works at Allenheads, including the remains of a washing floor and a set of bouse teams, as well as the drainage tunnel and channel of the Fawside lead level, a revetted section of the River East Allen and a section of spoil tip. The bouse teams and the drainage tunnel and channel are Listed Grade II. The monument formed part of a wider complex of ore works and lead mines at Allenheads which included the Fawside level, begun in 1776, and the Gin Hill shaft which was dug by 1793. The complex forms the focal point of Allenheads planned industrial village, constructed for the workers and staff of the Blackett-Beaumont lead enterprises. All lead working activity on the site ceased in 1896. A fine set of bouse teams, or tall, stone containers, are visible at the eastern end of the monument; these containers were used to store the newly mined lead ore prior to processing. The bouse teams are constructed of squared rubble and consist of 14 apsidal bays separated by stepped walls. Some of the bays still carry the remains of large timbers which formed part of a tramway, along which the lead ore was carried in trucks for tipping. At the northern end of the bouse teams there are the remains of a stone arched drainage tunnel; a paved and walled channel 70m long emerges from the tunnel and carries water from the Fawside level to the river at the south western part of the monument. To the west of the bouse teams there are the earthwork remains of the associated dressing floors on which many of the ore processing operations, intended to wash and sort the ore from unwanted impurities, were carried out. The floors are visible as a level surface containing the remains of several rectangular and square depressions; these depressions are interpreted as buddles and/or slime pits. The stone footings of a building are also visible. The washing floors are flanked on the north by the River East Allen which is contained within a paved and stone lined channel; it is thought that the walled channel was constructed partly in order to protect the washing floor from erosion by the river. At the north western end of the monument there is a section of a large spoil heap associated with the mining and ore processing activities at Allenheads. The wooden bridge across the River East Allen, the stone steps giving access to the spoil heap, all gate posts and all fences and railings which cross the monument are excluded from the scheduling, although the ground beneath these features is included.

MAP EXTRACT The site of the monument is shown on the attached map extract.

Selected Sources

Other
NY84NE 03,

National Grid Reference: NY 85954 45528

Map

Map
© Crown Copyright and database right 2017. All rights reserved. Ordnance Survey Licence number 100024900.
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This copy shows the entry on 17-Nov-2017 at 05:39:54.

End of official listing