The clipped sockeye that you caught in the Chiliwack river upstream of the Sweltzer creek confluence, would have been a Cultus sockeye. I was part of a small telemetry study on Cultus sockeye in if memory serves me ...in 1996. A good portion of the fish missed the turn to Sweltzer and continued quite a way upstream where they would hold off another creek mouth. Some would hold there for days while others would be there for a day or so. All would head back downstream and try again. Some found Sweltzer and some did not. It all depended on which side of the river they were swimming up. Some actually went to the fence at Cultus and then went back to the Vedder and then came back again. This was also the the last year they returned "normally".