Origin Notes and History:
T Mountain was adopted in the 18th Report. Confirmed 24 July 1945 on 104SE and 10 September 1953 on 104F. Elevation of 8001 feet.
Source: Canadian Geographical Names Database, Ottawa
So designated by the Alaskan Boundary Tribunal, 1903.
Source: 18th Report of the Geographic Board of Canada, 31 March 1924 (supplement to the Annual Report of the Dept of the Interior, 1924, Ottawa)