The next shoreline at 1,364-67 m (4,475-85 ft) is seen at only a few places in the Fort Rock Basin, such as Fandango Canyon and Cougar Mountain. This level formed the caves at the top of the southern toe of the Connley Hills. The lake was 52 meters (170 feet) deep at this level and covered an area of 1,945 km2 (1208 mi2). The only islands exposed were the Connely Hills, Buchgrass Butte, and the Fort Rock tuff ring.