🪨 Giant's Causeway and Causeway Coast
Columnar basalt formations on County Antrim's northern coast, Northern Ireland
📌 Fast Facts
- Location: County Antrim, Northern Ireland
- Columnar formations: Approximately 40,000 interlocking hexagonal basalt columns
- Geological age: ~60 million years, Paleogene period
- UNESCO inscription: 1986
The Giant's Causeway and Causeway Coast is a geological formation in County Antrim, Northern Ireland, that comprises approximately 40,000 interlocking hexagonal basalt columns created by rapid cooling of lava flows during the Paleogene period roughly 60 million years ago. The site was inscribed as a UNESCO World Heritage Site in 1986. The columns descend gradually toward the sea, forming a natural pavement of striking geometric regularity, with the broader Causeway Coast extending along several ...