Alaska Volcano Observatory

View of the central highland of St. Paul Island from Rush Hill on the west coast. The surface of St. Paul Island consists of more than fifteen scoria and spatter cones that rise 30 to 100 m above their bases and are surrounded by small shields of coalescing low viscosity lava flows. The youthful volcanic topography of the central highland includes sharp, undissected cinder cones and two polygenetic shield volcanoes.