Little Ring Mountain, a flow-dominated tuya in the Mount Cayley volcanic field. It consists of finely-jointed, fine-grained to glassy black plagioclase-augite-phyric andesite flows (Kelman et al. 2001). Its top surface appears to be subaerial. The age is unknown, but lack of evidence for glacial overriding and preservation of finely-jointed, glassy lavas suggests that it may have formed during the Fraser Glaciation (10,000-12,000 years ago).