Editing Volcanic plug (section)

=== Europe ===
[[File:Rocher St Michel à Aiguilhe.JPG|thumb|upright|[[Saint Michel d'Aiguilhe]] chapel, on top of a volcanic plug in [[Le Puy-en-Velay]], France.]]

[[Borgarvirki]] is a volcanic plug located in north Iceland.

A volcanic plug is situated in the town of [[Motta Sant'Anastasia]] in Italy.

[[Saint Michel d'Aiguilhe]] chapel, whose construction started in 969,<ref>{{Base Mérimée|PA00092565|Eglise Saint-Michel}}</ref> near [[Le Puy-en-Velay]] in France. The volcanic plug rises about {{convert|85|m}} above the surroundings. Another building on a volcanic plug is the 14th century [[Trosky Castle]] in the [[Czech Republic]].  [[Strombolicchio]], the northernmost of the [[Aeolian Islands]], and [[Rockall]], a small, uninhabited, remote [[islet]] in the North [[Atlantic Ocean]], are also volcanic plugs.

In the [[United Kingdom]], two examples of a building on a volcanic plug are the [[Edinburgh Castle|Castle Rock]] in [[Edinburgh]], Scotland, and [[Deganwy Castle]], [[Wales]]. The [[Law, Dundee]], [[Ailsa Craig]], [[Bass Rock]], [[North Berwick Law]] and [[Dumgoyne]] hill are other examples of volcanic plugs located in [[Scotland]]. There are over 30 volcanic plugs in [[Northern Ireland]], including [[Slemish]] in [[Ballymena]], [[Tievebulliagh]], [[Scawt Hill]], [[Carrick-a-Rede Rope Bridge|Carrickarede]], [[Scrabo Tower|Scrabo]] and [[Slieve Gallion]].<ref name="hmso">Wilson, H E et al (1986) Geological Survey of Northern Ireland, HMSO</ref>