The Marble Fork is one of my favorite fishing streams. Last time I was there, a few years ago, we caught multiple fish of all 3 species from the same pool. Crescent Creek is also super good, but it only has Brookies. There are several other relatively accessible creeks in the area that have trout as well, but I am not as familiar with them. I did fish the Middle Fork of the Kaweah once farther down the highway, and hooked a Rainbow Trout on a fly, but it came off before I got it in.