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Earth Science Conservation Review
| Western Moraine Complex - Moygannon River Valley Moraines | Down |
| Site number: | 457 | ||
| ESCC: | IS | ||
| Locality Type: | Inland exposure | Status: | TBC |
| Grid Reference: | J165225,J155200 End(s) of linear site, Not Entered | ||
| Google maps: | 54.13882,-6.21745 | ||
| County: | Down | Council area: | Newry, Mourne & Down District Council |
| Period: | Quaternary | ||
| Stages: | Late Midlandian | ||
| Site Description | |
|---|---|
| Description: | |
Nine cross-valley moraines in the 3km length of the Moygannon River valley are broad (<200m), rounded and discontinuous. There are frequent meltwater breaches in frontal moraines. A longitudinal ridge at Ballymaconaghy (J158203) <1km long, is <300m wide, and <15m high, and is bounded in the east by the underfit Moygannon River and in the west by a minor stream. The ridge consists of ca. 4 poorly marked cross-valley frontal moraines, which are more clearly defined on the valley sides as discontinuous round-crested ridges and benches. Minor exposures indicate that the ridge contains gravely diamict. Lateral moraine benches and subdued hummocks trend northward along the flanks of streamlined hills on the western side of the valley. Two well-marked cross-valley arcs at Aghavilly have sharply defined, steep, distal and proximal slopes. | |
| Notes: | |
For site specific information on other sites within the Western Mournes Complex see the following sites: Key Site 455 - Kilbroney River Valley Moraines Key Site 456 - Ghann River Moraines Key Site 458 - Western Lowlands Drumlins and Moraines For overview information and references on the Western Mournes Complex see the following site: Key Site 450 - Western Mournes Complex - Overview For overview and site specific information on other sand and gravel sites within the Mourne Mountains area see the following sites: Key Site 440 - Mourne Plain Complex - Overview Key Site 447 - Attical Complex, Mourne Mountains - Overview Key Site 448 - Bloody Bridge River Valley Complex, Mourne Mountains - Overview Key Site 449 - Northeast Mournes Complex - Overview Key Site 451 - Annalong Valley For general information and references on the sand and gravel landscapes of N. Ireland, and directions to sites other than those within the Mourne Mountains area, see the following site: Key Site 439 - Introduction to the Sand and Gravel Landscapes of N. Ireland This site is also a Site of Local Nature Conservation Importance. See Key Site 745 - Moygannon River Valley Moraines. | |
| Keywords | |
|---|---|
| Geomorph: | cross-valley moraine |
| Record type: | ESCR report | ||
| Entered by: | E M Porter | ||
| Enlander, I., Dempster, M. & Doughty, P., 2026. Western Moraine Complex - Moygannon River Valley Moraines, County Down, site details. [In] Earth Science Conservation Review. https://www.habitas.org.uk/escr/site.php?item=457. Accessed on 2026-11-07. |
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