Many travellers through the Fraser Canyon are familiar with Kanaka Bar, which has given its name to a First Nations band and a spot on the highway. However, few people have probably seen the place from which the name comes, and that’s a shame, as the site — and the people who gave it its name — might just be what kicked off the Fraser River gold rush in 1858. An undated photo clearly shows Kanaka Bar and a small rocky promontory below the CP mai…