Ring Mountain

Ring Mountain, also called Crucible Dome, is a volcanic tuya in British Columbia’s Mount Cayley volcanic field on the east side of the upper Squamish River. It is notable for its horseshoe-shaped crater and for western rock outcrops with unusually varied fine-scale jointing, weathered into many small spires and knobs. Although its exact age is uncertain, it most likely formed during the Fraser Glaciation, like many of Canada’s tuyas.

British Columbia · Canada