Wow, yes, that IS extremely special! In those 650 miles, how many dams must they have navigated to get to that stream section? Actually...I just looked...but only looked downstream from the Dworshak branch (which is still a long way downstream from you)...and just to get to that stream junction they must navigate at least 8 large dam systems. Sheesh. Can we make it any tougher for them to spawn?