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Special Areas of Conservation

Tonnagh Beg Bog

Designated Special Area of Conservation (SAC)
Country Northern Ireland
Unitary Authority Northern Ireland
Centroid* H412599
Latitude 54.48666667
Longitude -7.362777778
SAC EU Code UK0030325
Status Designated Special Area of Conservation (SAC)
Area (ha) 55.71
* This is the approximate central point of the SAC. In the case of large, linear or composite sites, this may not represent the location where a feature occurs within the SAC.
Location of Tonnagh Beg Bog SAC

General site character

  • Bogs, Marshes, Water fringed vegetation, Fens (89.9%)
  • Broad-leaved deciduous woodland (10.1%)

Download the Natura 2000 standard data form for this site as submitted to Europe (PDF <100kb)

Note When undertaking an appropriate assessment of impacts at a site, all features of European importance (both primary and non-primary) need to be considered.

Annex I habitats that are a primary reason for selection of this site

  • 7110 Active raised bogs  * Priority feature

    Tonnagh Beg Bog is among the best remaining examples of a lowland raised bog in the west of Northern Ireland. Typical of western bogs, the site is rather irregular in shape, with deep peat encircling a small drumlin of grassland on mineral soil. The uncut surface has a well-developed microtopography, consisting of a pool complex interspersed by well-formed hummocks, wet lawns and a soakway. Despite some burning in the past, the surface has an extremely high Sphagnum moss cover and a notable Sphagnum moss hummock development.

    The bog supports a very high frequency of the rare mosses Sphagnum imbricatum and S. fuscum, which form well-developed hummocks over the wet surface. Cranberry Vaccinium oxycoccos is locally frequent, growing over the surface of the highest hummocks.

Annex I habitats present as a qualifying feature, but not a primary reason for selection of this site

  • Not Applicable

Annex II species that are a primary reason for selection of this site

  • Not Applicable

Annex II species present as a qualifying feature, but not a primary reason for site selection

  • Not Applicable

Many designated sites are on private land: the listing of a site in these pages does not imply any right of public access.