The
first recorded ascent of Blackhorn's summit was made in August 1932 by
Henry Snow Hall and Hans Fuhrer. The Blackhorn name was submitted for consideration in April 1933 by Henry Snow Hall (1895–1987), Harvard Mountaineering Club, following his 1932 ascent. Hall wrote: "I have suggested the names Whitesaddle and Blackhorn for the two peaks which are prominently visible down the Homathko valley from the automobile road passing Tatla Lake. The names seem appropriate for this cattle ranching country because of the appearance of the peaks themselves. The right hand peak of the two, a dark rock dome, has a white glacier flowing from the summit down the face of the peak toward the observer which reminded me at once of a white saddle. The left hand peak, a sharper black rock summit might easily be imagined to look like a saddle horn or black horn." The landform's toponym was officially adopted January 9, 1934, by the
Geographical Names Board of Canada. ==Climate==