Adopted 24 April 2015 on 92K/9 as proposed by mountaineer Bruce Kay, with endorsement from the Association of Canadian Mountain Guides, the North Shore Rescue Team, and BC Parks.

Source: BC place name cards, correspondence and/or research by BC Chief Geographer & Geographical Names Office staff.

After Brent Mathieson (1969-2002), internationally certified mountain guide and avalanche safety professional. For more than a decade prior to his death, Brent was active professionally and in a volunteer capacity in developing Avalanche Safety Programs for both the general public and industry in BC, and is recognized nationally for his foundational contributions to the development of the Public Avalanche Bulletin, now produced by the Canadian Avalanche Centre. Prior to becoming a certified mountain guide Brent worked on the Cypress Mountain ski patrol and as a member of the North Shore Search & Rescue team. Following a fatality on the Grouse Grind in 1999, Brent spearheaded the initiative to create the North Shore Avalanche Advisory, a public bulletin which would summarize key winter mountain conditions within the North Shore mountains - the most heavily travelled mountains in Western Canada. The objective was to inform & educate the public of the specific hazards of the day, and to provide travel advice and information about avalanche activity and snowpack conditions. Brent Mathieson's commitment to educating the public in mountain skills, and his initiative and foresight to create a tool that helps users make informed decisions has contributed immeasurably to the safety of winter backcountry enthusiasts in British Columbia. In 2008/09, just prior to the 2010 Winter Olympics, the North Shore Avalanche Bulletin was assimilated into the Canadian Avalanche Centre's Public Bulletin. (descriptions and anecdotes were provided by the Association of Canadian Mountain Guides, the North Shore Rescue Team, and BC Parks, file O.1.76).

Source: included with note

Brent Mathieson was born and raised in Burnaby, and lived for most of his career in North Vancouver then Squamish. He was west coast director of the Association of Canadian Mountain Guides when he died in 2002 in a motor vehicle accident on the Duffy Lake Road. According to his colleagues, Mathieson's distinguishing contribution - the development of the Public Avalanche Bulletin - singles him out for this honour.

Source: BC place name cards, correspondence and/or research by BC Chief Geographer & Geographical Names Office staff.

Mountaineering literature suggests that John Clarke made the only recorded ascent of this peak on 13 September 1982, part of a solo trip into the Coast Mountains where he climbed most if not all of the high summits between here and Montrose Peak, 12 km to the northeast. The region is particularly rugged and is accessible only by air or via Toba Inlet to the upstream valleys. As a heli-ski guide, Brent was the first to ski the dramatic 2000m avalanche path that runs from this peak into Montrose Creek below. This mountain is within the traditional territory of the Klahoose First Nation; enquiries and requests for advice about pre-existing traditional names for this feature were made to Klahoose First Nation in August 2012 & February 2013, and to the Nanwakolas First Nations Referrals Office; to date, information about a traditional name for this feature, in the Northern Salishan (sometimes called Mainland Comox) or Éy7á7juuthem language, has not come to light.

Source: BC place name cards, correspondence and/or research by BC Chief Geographer & Geographical Names Office staff.