The Upper Sac has been solid since the water temps have dropped. Again the Fall colors are starting up and the October Caddis are starting their show. The water is late season normal flow, in other of words there is plenty of water. Hatches are still not quite there thus rising fish are persnickety. I have to say the entire river is worth nymph fishing and as the nights continue to get longer look for early and late top surface action with a stimmie/dropper or a double dry fly setup. A heads up the Dunsmuir area has been on fire for truck trout for those who like the frequent tug.
Quick note the steelhead are showing now on the Trinity, Klamath, and Rogue. I did a quick trip up to the Rogue yesterday and floated it with Buster, well worth the trip.