Scheduled Monument

Tom Beag,inclined plane,BallachulishSM6051

Status: Designated


Where documents include maps, the use of this data is subject to terms and conditions (

The legal document available for download below constitutes the formal designation of the monument under the Ancient Monuments and Archaeological Areas Act 1979. The additional details provided on this page are provided for information purposes only and do not form part of the designation. Historic Environment Scotland accepts no liability for any loss or damages arising from reliance on any inaccuracies within this additional information.


Date Added
Supplementary Information Updated
Industrial: bridge, viaduct, aqueduct; engine, engine house; mines, quarries; rail
Local Authority
Planning Authority
Lismore And Appin
NN 08569 58530
208569, 758530


The monument comprises a stone-built inclined plane associated with the Ballachulish slate quarries.

Ballachulish slate quarries were the most important source of slate in Scotland. They opened c. 1693 and closed in the early 20th century. The inclined plane formerly carried wagons of dressed slate down to the piers and took empty wagons up to the working faces. Near its base there is an arched opening through which the former public road passed.

The inclined plane is the main monument now visible of this nationally important industry, since the area has been landscaped for amenity and safety. The area to scheduled measures 15m wide and 80m long, to include the monument and an area around it in which evidence of its construction may survive, as marked in red on the accompanying map.

Statement of National Importance

The monument is of national importance because it is the last visible structural element surviving from a once-important national industrial complex. It is a dramatic and substantial monument of a rare type (other inclined planes survive largely as earthworks only), and it is a fine example of mid-19th-century civil engineering.



No Bibliography entries for this designation

About Scheduled Monuments

Historic Environment Scotland is responsible for designating sites and places at the national level. These designations are Scheduled monuments, Listed buildings, Inventory of gardens and designed landscapes and Inventory of historic battlefields.

We make recommendations to the Scottish Government about historic marine protected areas, and the Scottish Ministers decide whether to designate.

Scheduling is the process that identifies, designates and provides statutory protection for monuments and archaeological sites of national importance as set out in the Ancient Monuments and Archaeological Areas Act 1979.

We schedule sites and monuments that are found to be of national importance using the selection guidance published in Designation Policy and Selection Guidance (2019)

Scheduled monument records provide an indication of the national importance of the scheduled monument which has been identified by the description and map. The description and map (see ‘legal documents’ above) showing the scheduled area is the designation of the monument under the Ancient Monuments and Archaeological Areas Act 1979. The statement of national importance and additional information provided are supplementary and provided for general information purposes only. Historic Environment Scotland accepts no liability for any loss or damages arising from reliance on any inaccuracies within the statement of national importance or additional information. These records are not definitive historical or archaeological accounts or a complete description of the monument(s).

The format of scheduled monument records has changed over time. Earlier records will usually be brief. Some information will not have been recorded and the map will not be to current standards. Even if what is described and what is mapped has changed, the monument is still scheduled.

Scheduled monument consent is required to carry out certain work, including repairs, to scheduled monuments. Applications for scheduled monument consent are made to us. We are happy to discuss your proposals with you before you apply and we do not charge for advice or consent. More information about consent and how to apply for it can be found on our website at

Find out more about scheduling and our other designations at You can contact us on 0131 668 8914 or at


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Printed: 24/10/2021 14:14