Although it has a striking conical shape, Rubers Law (424m) is not the direct remains of a volcano itself, but the remnants of the central plug of hard rock left behind after over the 340 million years of erosion have removed the outer layers.
Uploaded to Geograph by Jim Barton on 28 October 2011
Photo © Jim Barton, 28 October 2011. Licensed for reuse under this Creative Commons licence