I haven't seen this river mentioned yet? But my cherry was popped on the Deschutes River(thurston county). Plunking down at the original Olympia Brewery. I don't remember the exact year but it was around the early to mid 80's.

Talk about memories. I remember having my mother drop me off down there with all the old farts. Drive my pole holder into the ground. Hook up the big ol clown spin-n-glow with a chunk of borax cured eggs, dropper pryamid weight, put in pole holder, clip on the brass bell and sit under the plunking shack made out of pallets with the tarp stretched over it. Listen to all the old timers tell stories while they drink thermos after thermos of coffee. I had my thermos full of hot chocolate.