Mount Garibaldi is an eroded, dacitic strato volcano in southwestern British Columbia. Both Garibaldi and Mount Baker to its south are part of the Cascade volcanic arc. Mount Garibaldi, 80 km due north of Vancouver, is made up of Mount Garibaldi, Atwell Peak,and Dalton Dome. This Pleistocene volcanic center is part of a volcanic field that contains some 13 vents in an area 30 km long by 15 km wide, much of which is in Garibaldi Provincial Park. 