Hans, Ryan, Shaun and Karl got out in Spearfish Canyon a couple weeks ago and shot some video, and this is the end result! Fishing in the canyon is great, and it's a pocket water fisherman's paradise - Czech Nymphing and Tenkara excel there, as you can see in this video. This was mostly filmed in the lower canyon, which is a steeper gradient and faster than the upper stretches, which are more traditional riffles-pools-runs. Spearfish has been fishing well throughout it's entirety, so get up there and give it a shot!
Ryan
https://vimeo.com/126005121