The thing that strikes me as the most impressive sight in this spectacular video is the complete and total lack of impact on the landscape by humanity. No roads, cutblocks, no mines, no dams ...... wilderness. We still have areas like that in BC but they are becoming fewer over time. Not hard to imagine the Fraser River and it's tributaries looking like this back in the era when there were estimated escapements of 50 million sockeye ( pre contact). The Adams, Chilco and Quesnel spawning areas are probably the best examples we have on the Fraser of scenes that look like the area in the video.