Extinguisher Ridge adopted 17 January 1951. Form of name changed to Extinguisher Tower 2 August 1956.

Source: BC place name cards, or correspondence to/from BC's Chief Geographer or BC Geographical Names Office

Labelled on A.O. Wheeler's 1911 topo map of Mount Robson (to accompany report of the Alpine Club of Canada Expedition, published in Canadian Alpine Journal, 1912. "One of the names proposed by Dr. Coleman for a prominent monadnock that is surrounded by ice, east of Mount Robson, is ' The Extinguisher ' and Mr. Wheeler has adopted the name on his map. I presume Dr. Coleman had in mind the conical extinguisher used in putting out candles in the olden times. It so happens that that particular mass of rock carries a very important bed of Cambro-Ordovician fossils, and will be referred to many times in the future in literature. It may be that I shall suggest a shorter and more euphonious name for it...." (File 0239 - letter from C.D. Walcott, Smithsonian Institute, to Surveyor-General 22 November 1912)

Source: BC place name cards, or correspondence to/from BC's Chief Geographer or BC Geographical Names Office

"On the cirque immediately north of Mt. Resplendent is a quaint tower of rock 500 feet above the ice - the "Extinguisher." (Parks' Branch 1956 pamphlet, Mount Robson Park)

Source: BC place name cards, files, correspondence and/or research by BC Chief Geographer/Geographical Names Office.