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Castle Rock
Castle Rock is a volcanic plug in the middle of Edinburgh upon which Edinburgh Castle sits. The rock is estimated to have formed some 350 million years ago during the early Carboniferous period. It is the remains of a volcanic pipe which cut through the surrounding sedimentary rock, before cooling to form very hard dolerite, a coarser-grained equivalent of basalt.
From Wikipedia, CC BY-SA 4.0.
- 130 m high
- Phone
- +441315107555
Place data from OpenStreetMap, © OpenStreetMap contributors, ODbL.
Also listed in Overture Maps open data.
Updated 27 Sept 2026. Something wrong? Tell us.