Phantom Ship 15. Aerial view northeast of Phantom Ship, a small island remnant of andesite of phantom cone (unit apn; 403±12 ka nearby). Resistant, hydrothermally altered lava flows that form Phantom Ship are the top of a buttress on the submerged caldera wall whose southwest side appears to be bounded by a northwest-trending dike (Bacon and others, 2002). Caldera wall in distance features Sentinel Rock and Kerr Notch (Panorama J). Mount Scott (right) and Cloudcap (left) are on skyline. Photograph by Charles R. Bacon.