Global Volcanism Program | Image GVP-02730
The glaciated surface of Mount Baker is seen here from neighboring Mount Shuksan. The peak in the shadow consists of metamorphosed basaltic rocks of the Shuksan Greenschist. The area to the right is the recently discovered Pleistocene Kulshan Caldera, which preceded the construction of Mount Baker. The 4.5 x 8 km caldera is largely filled by up to 1 km of non-welded tuffs and is capped by lava flows.
Photo by Lee Siebert, 1971 (Smithsonian Institution).