I fished a little bit above the cascades and only caught rainbows
Earlier in the year I remember it being mostly Brookies around 23.
Water temp was 66 degrees on Little at Fish Camp confluence, and 65 degrees about 3/4 mile upstream. I would hike as much as you can as the fishing will be better the higher you go and there will also be a higher concentration of Brookies.
I remember catching some rainbows in lower end of all feeders. Also look at where Siler's moved it's confluence about a hundred yards from where the maps shows. Cool wash of rocks up there that really shows the immense power of nature.
Make sure to use a dropper as that how 2/3 were caught, and they absolutly killed the yellowhammer.