Clay String [Shaft]

Leadhills, Glengonnar, Lanarkshire.

NGR:	NS 88080 14236
WGS84:	55.40923, -3.76925
Length:	Not recorded
Vert. Range:	Not recorded
Altitude:	441 m
Geology:	Portpatrick Formation - wacke
Tags:	Shaft, Trial, ManMade, Archaeo
Registry:	second

Mine shaft, possibly the site of a trial in the Clay String Vein. Crater & spoil tip visible at surface.

"This [Clay String] vein trends north-east, and is parallel to the bedding. It cuts across between Hopeful and George's Roust Veins, and shifts the latter a few feet. Levels have been driven along it at different elevations, but they are probably only for drainage. The vein appears to be barren." [Wilson, 1921]

Alternative Names: None recorded.

Notes: Located over area of crosscuts of Cockspat & Hoeful Levels along the Clay String. Could potentially connect, but no shaft shown on Mine Plan (SP1807).

Links and Resources:

Site 10333: Leadhills (Overview)
Mine Plan (BGS, SP1807): Lowland Lead Mines. Leadhills Lead Mines. - View
British Geological Survey of Scotland map (1:10k Series). NS 81 SE (Wanlockhead), Solid & Drift Ed. - View
Wilson, G.V. 1921. The lead, zinc, copper and nickel ores of Scotland. Special reports on the mineral resources of Great Britain Volume XVII. Edinburgh: HMSO for the Geological Survey.

This entry was last updated: 2026-04-16 12:20:02

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