Mount Meager is a potentially active volcano in the Canadian province of British Columbia, Canada, 150 kilometers north of Vancouver. The top of the mountain is mostly covered by snow and glaciers. It lies in the Garibaldi Volcanic Belt and is the northernmost volcano of the Cascade Volcanic Arc that extends down to northern California. Its most common type of rock is lava that is almost a million years old (with a thickness in some places over 1 km).