Tonnagh Beg Bog ASSI Topics: Land and Landscapes, Biodiversity, Areas of Special Scientific Interest Date published: 16 June 2015 Tonnagh Beg Bog ASSI site citation documents and map Site NoASSI 129Area55.6 (ha)Declared Date29/08/1996CountyTyrone Documents Tonnagh Beg Bog ASSIAdobe PDF (622.17 KB)