"The Tahumming" as used here is a bit more encompassing than the way in which the phrase is normally used. Specifically, the Klite and Filer Creek drainages have been largely included within the "Tahumming" area boundaries. History: Roger Prentice and Frank Daw visited the area in 1938 and climbed Diagonal Mtn. and False Portal Peak.
The area was visited by American mountaineers in the 1950's and 60's who climbed peaks in the glaciated northern portions around Icewall Lake.
In the 1980's, John Clarke and John Baldwin traversed around the entire Tahumming drainage. Clarke considered this the most scenic of any of his high level traverses. The traverse has subsequently attained a measure of popularity and has been repeated several times since. It is generally done from east to west, starting on the Tahumming-Klite divide and finishing near The Champion.