Lots of Smallies around. Indeed the Grand is a great place for them.
A lot of western tribs hold them, they don't actually leave because of the Salmon. They are still there, you just have to fish harder and be a little more patient because the amount and size of the Salmon kind of spooks them. As does the increase in the amount of anglers.
Salmon fishing techniques also differ quite a bit from Bass fishing so that results in them not being seen as often. I catch Bass in western tribs up til Oct and even Nov, but not that often, I don't fish Salmon, that is a shitte-show. I am mostly targeting 'bows and Browns that are feeding on Salmon eggs floating down-stream, but often switch to spinners and small spoons for the Trout which does result in Bass as well.
Alfie.