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Protected Areas

Ballysudden ASSI

Last updated: 5 February 2010

Site No ASSI 133
Area 97.8 (ha)
Declared Date 07/02/1997
Confirmed Date 03/07/1997
County Tyrone
Council(s) Cookstown DC
Keywords Earth Science

Ballysudden contains some of the finest Carboniferous limestone palaeokarst features exposed anywhere in the British Isles. These limestones, over 100m thick and some 335 million years old , formed in a shallow marine environment and are rich in fossils such as brachiopods and corals. Emergence and exposure of the former limestone seabed to terrestrial conditions allowed soil development and solution of the limestone to commence. This resulted in the formation of potholes and other solution hollows which can attain substantial sizes within the site. Palaeontological investigations of the infill may offer the rare opportunity to assess a Carboniferous terrestrial environment with the possibility of macro fossil remains.

Site Related Documents

Site map (.PDF 999Kb)Opens in New window, Citation document (.PDF 77Kb)Opens in New window and Views about Management document (.PDF 41Kb)Opens in New window.