Looking north over the northern caldera wall. The light tan portion of the wall has been altered to clay, likely due to older fumarolic activity, similar to what is seen today on Mt. Finch ~5 km to the south. The dark areas in the foreground are basaltic scoria deposits from a cinder cone just outside the field of view to the west (left). The stream valleys empty into the western caldera lake.Image courtesy of the photographer.