Black Bog SAC

Black Bog lies at the source of the Owenreagh River between Omagh and Cookstown in Omagh District. The bog lies at a moderate elevation between 130m and 140m O.D. and displays some characteristics of transitional intermediate bog. With an uncut dome estimated to be just over 147 ha, it represents the largest area of uncut lowland raised bog in Northern Ireland.

The active raised bog supports well-developed and extensive hummock and hollow topography, and notable peatland flora including Empetrum nigrum, the oceanic liverwort Pleurozia purpurea and the bog mosses Sphagnum fuscum and S. imbricatum. One of the most important features of Black Bog is the unbroken transition through a lagg, dominated by Purple Moor-grass Molinia caerulea, to swamp and fen along the Owenreagh River.