Read the Code of Conduct and Safety Guidelines and book your place …

Excursion title:

Leadburn and Noble House

Please note for safety reasons this excursion will now not visit Leadburn Quarry but will instead focus on the Noble House quarry.

Date & time:

Wednesday 28 June 2017, 7 pm

Finish time:

9 pm


Professor Brian Upton, University of Edinburgh

Excursion aims and description:

The rocks south of Leadburn are of Ordovician age, and include turbidite sequences formed on the floor of the Iapetus Ocean. These sedimentary rocks are visible in a quarry near Leadburn, and were formed in huge submarine fans which contain evidence of the processes involved and the source of the sediment. In contrast, volcanic activity on the sea floor around 450 million years ago formed pillow lavas with interbedded cherts, that can be observed near Noble House on the A701.


Private car

Start place & time:

Penicuik, main public car park (opposite Lidl) @ 7pm. Car sharing from here is encouraged.

First locality:

Noble House Farm NT 184 501. Parking is limited and there will be a charge of £2 for each car.

Excursion route:

Visit a small disused quarry at Noble House, there is a 15/20 minute walk up to the quarry with pillow-lavas and chert beds. Walking distance of about 700m.

Geological map:

Scotland 1:50k sheets 24W Biggar and 24E Peebles

OS map:

Landranger 66 Edinburgh and 73 Peebles, Galashiels and Selkirk

Terrain, walking distance, height gain:

Short walks on flat ground.

Specific or Medium- / High-Risk Hazards:

Sheer drops in quarries.

Control measures required to mitigate against any Hazards referred to above:

Be aware, stay with group.

Hard hats or Hi-viz clothing needed?

Hi-viz jackets desirable.

May dogs be brought on the excursion?


Toilet information:



Reference (For Noble House) Craig, G.Y. and Duff, P. McL. D. eds. The
geology of the Lothians and South East Scotland: An Excursion Guide.
Scottish Academic Press, Edinburgh. Noble House, Lamancha by A. Lamont,
pp 158-166.