| Month | CGS Name | County | Description | Site Report |
April 2026
| Windy Gap
| Louth
| Windy Gap is a 200m-high mountain pass between the Slieve Foy (east) and Black Mountain (west) massifs
| link
|
March 2026
| Barnavave Quarry
| Louth
| The site is a small disused quarry on the eastern flank of Barnavave Hill, 200m above the
upper road between Carlingford and Grange Irish
| link
|
February 2026
| Western Cuilcagh – White Father’s Caves
| Cavan
| The limestone hosting the cave is the Knockmore Limestone Member, a carbonate
mudmound facies within the Dartry Limestone Formation, of Lower Carboniferous age
| link
|
January 2026
| Fowley's Falls
| Leitrim
| The bedrock comprises Mississippian (Lower Carboniferous) interbedded limestone and shale of the
Glencar Limestone Formation and shale and calcarenite of the Benbulben Shale Formation (c. 330
Ma)
| link
|
December 2025
| Bencroy
| Leitrim
| Bencroy is the most significant former coal mining site in the
Connacht Coalfield east of Lough Allen
| link
|
November 2025
| Lough Kinale and Derragh Lough
| Longford
| The lakes lie in a trough of Lower Carboniferous limestone bedrock. They are separated by a peninsula area of well drained land, known as "Derragh Island"
| link
|
October 2025
| Glenbarrow
| Laois
| A long section in the bed and banks of the river in Glenbarrow
| link
|
September 2025
| Western Cuilcagh - Corratirrim
| Cavan
| The rock here are limestones belonging to the Lower Carboniferous Dartry Limestone Formation. They are mudbank facies defined as the Knockmore Member
| link
|
August 2025
| Mongan Bog
| Offaly
| Mongan Bog comprises an extensive area of peatland extending in a lowlying hollow for approximately 2 kilometres, north to south, just east of Clonmacnoise.
| link
|
July 2025
| Corlea Trackway
| Longford
| The Corlea Trackway is situated within an area dominated by bedrock of Lower Carboniferous limestone
| link
|
June 2025
| Abbeyleix Bog
| Laois
| Abbeyleix Bog comprises an extensive area of peatland extending in a low-lying hollow
| link
|
May 2025
| Little Brosna - Shannon Confluence
| Offaly
| The Little Brosna is confined by raised bogs with callows along its final 8km
| link
|
April 2025
| Murrens Esker
| Meath
| The site consists of a wooded ridge – esker and hummocky ground including gravel pit
| link
|
March 2025
| Temple Bar Street Well
| Dublin
| The well is a hydrogeological feature of historic and perhaps modern water flow
| link
|
February 2025
| Clogher Head
| Louth
| This is an approx. 750-long coastal section, between Port Oriel in the north and Red
Man’s Cove in the south, comprising extensive foreshore outcrops backed in places by steep
cliffs
| link
|
January 2025
| Dunmore Cave
| Kilkenny
| Impressive dripstone formations are found throughout this cave system,
including numerous stalactites and stalagmites ranging from a few millimetres to several metres in
size
| link
|
December 2024
| Clonkeen Mushroom Rock
| Offaly
| Clonkeen is one of the relatively numerous examples of mushroom rocks in Offaly
| link
|
November 2024
| Lough Boora Parklands
| Offaly
| The Lough Boora Parklands are situated within an area dominated by bedrock of Lower
Carboniferous limestone
| link
|
October 2024
| Knocknarea
| Sligo
| Fossils are found in the outcrops on this hill, which was shaped by glacial processes
| link
|
September 2024
| Ballymastocker Bay
| Donegal
| Ballymastocker Bay is a wide coastal beach and dune system with some unusual exposures of bedrock and cemented sand
dunes
| link
|
August 2024
| Boyne Valley
| Meath
| Features within the valley include suites of glaciofluvial
and delta terraces.
| link
|
July 2024
| Cuilcagh Mountain
| Cavan
| As sea-levels fell in the Carboniferous, limestone seas were filled with sand and mud to form these Cuilcagh Mountain rocks
| link
|
June 2024
| Ballydonegan Strand
| Cork
| This unusual beach is essentially man-made, formed as a direct consequence of copper mining, mainly in the 19th century.
| link
|
April 2024
| Lady's Island Lake | Wexford | Geomorphology has a direct influence on this brackish lagoon which is an important habitat for many species of birds. | link
|
March 2024
| Silver River | Offaly
| Follow the Silver River gorge through the Silurian, Devonian and Carboniferous along this nature trail | link |
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