24. Aerial view of Phantom Ship island and unnamed point in phantom cone (Williams, 1942). All visible rock is lava and breccia of the andesite of phantom cone (unit apn; 403±12 ka here). Phantom Ship tops a buttress on the submerged caldera wall, whose southwest side appears to be bounded by a northwest-trending dike (Bacon and others, 2002). The beach at the point becomes much more extensive at times of low lake level and indicates that the surface elevation of Crater Lake has varied within only a few meters for a considerable time (Bacon and others, 2002).
Photograph by Charles R. Bacon.