| Feature Type: | Mount - Variation of Mountain: Mass of land prominently elevated above the surrounding terrain, bounded by steep slopes and rising to a summit and/or peaks. ["Mount" preceding the name usually indicates that the feature is named after a person.] |
| Status: | Official |
| Name Authority: | BC Geographical Names Office |
| Relative Location: | On BC-Alaska boundary SE of Mount Jetté, at extreme NW corner of BC, Cassiar Land District |
| Latitude-Longitude: | 59°50'40"N, 138°40'46"W at the approximate centre of this feature. |
| Datum: | WGS84 |
| NTS Map: | 114O/15 |
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Origin Notes and History:
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Adopted 8 January 1924, as recommended by BC Geographic Division. Source: BC place name cards, or correspondence to/from BC's Chief Geographer or BC Geographical Names Office |
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After Judge Lyman Poore Duff (1865 - ), of the Supreme Court of Canada, who was Great Britain's Junior Counsel before the Alaskan Boundary Tribunal in 1903. Duff had been appointed to the Supreme Court of Canada in 1906, was appointed Chief Justice of the Supreme Court of Canada in 1933 and served in that capacity until retiring from the Court in 1944.) When Governor General Lord Tweedsmuir died in office in February 1940, according to the rules of succession, Chief Justice Duff became acting Governor General for Canada until a new Governor General was appointed by the Monarch in June 1940. Source: BC place name cards, or correspondence to/from BC's Chief Geographer or BC Geographical Names Office |