List of extinct volcanoes
Volcanologists sometimes can't tell whether a volcano is extinct or dormant. A caldera that has not produced an eruption in tens of thousands of years is likely to be considered inactive. Dormant volcanos may still erupt, whereas extinct ones cannot.
There are many examples of extinct volcanoes.
- Ben Nevis, the tallest mountain in the United Kingdom.
- Hawaiian–Emperor seamount chain in the northern Pacific Ocean
- Huascarán in Peru
- Kyushu-Palau Ridge in the Philippine Sea
- Mount Buninyong in Australia
- Tamu Massif in the Northwest Pacific Ocean
- Waw an-Namus in Lybia
- Edinburgh Castle in Scotland is located on a dolerite plug, the remnant of a volcano that went extinct many millions of years ago. 
- The plural of volcano can be either volcanos or volcanoes. Both are equally correct, and it is not a matter of British vs US spelling. Oxford English Dictionary. Spelling in any particular Simple page tries to be consistent.
- Ball, Jessica. "Voices: Dead or alive ... or neither? Why a dormant volcano is not a dead one," Earth Magazine (American Geosciences Institute). September 8, 2010; retrieved 2012-6-14.
- Monterey Bay Aquarium Research Institute, "Life-cycle of Hawaiian hot spot volcanoes"; retrieved 2012-6-14.
- Some volcanologists have described to extinct volcanoes as "inactive". However, the term 'inactive' is now more often used for dormant volcanos which were once thought to be extinct.
- Tarduno, John A. "Hotspots Unplugged," Scientific American. January 2009; retrieved 2012-6-14.
- BBC, "On This Day, 11 January 1962: Thousands killed in Peru landslide"; retrieved 2012-6-14.
- Kobayashi, K. "Origin of the Palau and Yap trench-arc systems," Geophysical Journal International, Vol. 157, Issue 7, p. 1306.
- City of Ballarat, "Mt Buninyong Scenic Reserve"; retrieved 2012-6-14.
- "New Giant Volcano Below Sea Is Largest in the World". 2013-09-06. Retrieved 2018-09-06.
- Temehu.com. "Waw an-Namus (al-Namous) Volcano". www.temehu.com. Retrieved 2018-09-06.
- Edinburgh Geological Society, org/edinburghs-geology/ "Edinburgh’s Geology"; retrieved 2016-2-28.