Why this matters
Devil's Thumb is a prominent coastal rock feature composed primarily of basalt, formed during the Palaeogene period (approximately 60 to 55 million years ago) as part of the basaltic lava flows associated with the Antrim Plateau. It is notable for its distinctive thumb-like shape, likely sculpted by differential erosion along the coastline.
What is recorded here
Devil's Thumb is recorded as a named rock in County Derry. Its open map record supplies this location and any linked names or public references.