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Earth Science Conservation Review
| Drumard Water | Londonderry |
| Site number: | 300 | File Number: | H79 |
| ESCC: | EO | ||
| Locality Type: | Stream section | Status: | ESCR |
| Grid Reference: | H7993,H7994 1 km square, Not Entered | ||
| Google maps: | 54.77913,-6.77223 | ||
| County: | Londonderry | Council area: | Mid Ulster District Council |
| Period: | Carboniferous | ||
| Stages: | Tournasian | ||
| Lithostrat: | Altagoan Formation, Drumard Member, Tyrone Group | ||
| Site Description | |
|---|---|
| Highlights: | |
The stratotype section of the Drumard Member of the Altagoan Formation occurs in the Drumard Water. | |
| Description: | |
The stratotype section of the Drumard Member occurs in the Drumard Water from a ford, some 200m south of Gortnaskey Bridge, at H7951 9438 and extends south-southwestwards for 520m to the confluence of the two main tributaries at H7925 9392. Strata are inclined to the ENE at between 5-20 deg. and consist of thinly bedded, red and grey, medium-grained sandstones and brown-grey silty mudstones interbedded with fine-grained sandstones up to 0.12m thick. Towards the top of the section are sandy and shaley mudstones with a light scattering of mica and carbonaceous matter on bedding surfaces. Beds of reworked pedogenic carbonate nodules between 0.15-0.3m thick occur in a sequence of red-brown mudstones some 200m south of the ford in the river. | |
| Notes: | |
For information on other sites in Subarea-12 see Key Site 1185 - Subarea-12; Draperstown-Glenshane Pass-Limavady. | |
| Keywords | |
|---|---|
| Rocks: | Mudstone, Sand, Sandstone |
| Paleoenv: | alluvial fan |
| Measurements | |||||
|---|---|---|---|---|---|
| Length: | 520 m | Width: | Height: | ||
| Depth: | Area: | ||||
| Access | |
|---|---|
| Approach: | Section begins at the ford, 200m south of Gortnaskey Bridge, 1km east of Draperstown. |
| Map(s): | GSNI (1995) 1:50,000 Solid Geology of Sheet 26 (Draperstown). | ||
| Record type: | ESCR report | ||
| Entered by: | Doughty, P.J. | ||
| Last updated: | 8 Jan 2005 | ||
| Enlander, I., Dempster, M. & Doughty, P., 2026. Drumard Water, County Londonderry, site details. [In] Earth Science Conservation Review. https://www.habitas.org.uk/escr/site.php?item=300. Accessed on 2026-11-06. |
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