Global Volcanism Program | Image GVP-05294
The summit lava dome complex of Augustine volcano is seen here above its SW flank. The upper part of the summit is formed by a lava dome from the 1963-64 eruption. Pre-Augustine sedimentary basement rocks of Jurassic to Tertiary age are exposed on the south flank to an elevation of 320 m.
Photo by Game McGimsey, 1994 (Alaska Volcano Observatory, U.S. Geological Survey).