The Barrier, an ice-impounded lava flow located to the northeast of Mount Garibaldi, British Columbia, near the Mount Price complex. The oxidized, rubble-topped, andesite flow stretches from a cone on the western side of Mount Price, Clinker Peak, into the upper reaches of the Rubble Creek Valley. There it terminates in a 200 m cliff, surrounded by debris. This formed when lava pooled against a waning ice sheet at the end of the Fraser Glaciation, 8,000-10,000 years ago. The current face of the Barrier is a scar from a major landslide during the mid-nineteenth century (Mathews 1952a).