Siccar Point is a rocky promontory in the county of Berwickshire on the east coast of Scotland.

Siccar Point was the site of a dun, or small hill fort, in the territory of the ancient Britons.

The church is built in a Romanesque style, in a mixture of Old Red Sandstone believed to have been quarried from the nearby Greenheugh Bay[citation needed] and of the greywacke rock also used in the drystone dyke forming the field boundaries.

[2] He wrote later that the evidence of the rocks provided conclusive proof of the uniformitarian theory of geological development; that is, that the natural laws and processes which operate in the universe have never changed and apply everywhere.

In respect for its great importance to the development of geoscience, this locality was included by the International Union of Geological Sciences (IUGS) as the first of 100 'geological heritage sites' around the world in a listing published in October 2022.