Between four and six different glacial periods over the past 50 million years have eroded the volcano to produce Mount Boucherie.

[3] Though it now only rises 417 metres above the nearby lake level, it is estimated to once have had an elevation of 2,000 m (6,562 ft) or more.

Above the valley floor, the east cliff face is composed of folded volcanic flows of dacite.

In the early evening of May 7, 1992, a forest fire was accidentally started by two 11-year-old boys playing with matches behind Mount Boucherie Secondary School.

[11] This led to the evacuation of about 100 people while the blaze consumed 60 hectares of forest on the steep north and east slopes of Mount Boucherie.