Home
Introduction
Geology of NI
Introduction to the database
ESCR site list
Map
Selected sites to visit
Additional NIEA information
Previous SiteNext Site

Earth Science Conservation Review

Summary Full report
Garrison; County River natural bridgeFermanagh
Site number:429File Number:H94
ESCC:IC
Locality Type:Karst Status: local interest
Grid Reference: G968464 Centroid
Google maps: 54.36672,-8.04921
County: FermanaghCouncil area:Fermanagh & Omagh District Council
Period:Quaternary, Carboniferous
Stages:Asbian, Holocene, Visean
Lithostrat:Knockmore Limestone Member
Site Description
Description:
This natural bridge is situated on the County River on the border between County Fermanagh and County Leitrim leaving only half the feature in Northern Ireland. It is adjacent to a scheduled archaeological site and the bridge must have been significant in the siting of the adjacent monastery. The bridge is developed in a small outcrop of the Knockmore Limestone, has a span of ~8m and is 4m in breadth. There are foot caves in both north and south banks and a short joint controlled rift at right angles to the river bank cuts the cliff lined bank next to the bridge.
Notes:
The County River natural bridge is a feature of the Garrison area and an outlying karst site in County Fermanagh. For general information on the systems and features of the Garrison area, including this one, and a reference list, see 'Outlying Sites of Fermanagh & Tyrone; Garrison'.
Keywords
Rocks:Limestone
Structures:joints, rift
Geomorph:cave, natural bridge
Measurements
Length:~8 mWidth:4 mHeight:
Depth:Area:  
Record type: ESCR report    
Entered by: Doughty, P.J.
Last updated:24 Dec 2003
 Enlander, I., Dempster, M. & Doughty, P., 2026. Garrison; County River natural bridge, County Fermanagh, site details. [In] Earth Science Conservation Review.
https://www.habitas.org.uk/escr/site.php?item=429. Accessed on 2026-11-06.

Previous SiteNext Site
Finding out more
Acknowledgments
Habitas
© National Museums NI 2003-24