Hermit Mountain adopted in the 5th Report of the Geographic Board of Canada, 30 June 1904. Also Hermit Range and Hermit Glacier. Incorrectly identified as "Mount Hermit" in the 18th Report of the Geographic Board of Canada, 31 March 1924. Form of name corrected to Hermit Mountain 8 September 1932 on 82 N/SW, as originally intended and as labelled on maps to accompany A.O. Wheeler's The Selkirk Range, 1905, and on Dept of Interior map of Rocky & Selkirk Mountains, 1914, etc - this is the long-established form of the name.
Source: BC place name cards, or correspondence to/from BC's Chief Geographer or BC Geographical Names Office
"....a name suggested (not by me) by the rock formation, not well seen without a glass, resembling the hermit seen at the time in advertisements of St. Jacob's Oil...." (memo from Dr. Klotz, Ottawa file OBF 0067) [date of memo not cited; note that this anecdote would correctly be applied to The Hermit, not to Hermit Mountain]
Source: Canadian Geographical Names Database, Ottawa
"Hermit Mountain, named by Order in Council... a prominent peak of the Hermit Range lying between Swiss Peak, Mt. Shaughnessy and Mt. Tupper." (A.O. Wheeler, The Selkirk Range, 1905, p.380.) [not to be confused with The Hermit (peak), "...rock figures on Mt. Tupper resembling a hermit with a god lying at his feet." (ibid. p.380.), located on the shoulder extending northwesterly from Mt. Tupper to Swiss Glacier, about 1 mile southeast of Hermit Mountain on the opposite site of Tupper Glacier. ]