Sounds like Big Creek...
If fishing were as productive at Big Creek as the stream is scenic, wouldn't that be dandy. Years ago I fished there a lot. I've had a few good days there, but more poor to mediocre days than about anywhere else in the park. I have theorized that the high gradient and low fertility prevent a lot in the way of trout foods from prospering here. In those days fishing got a bit better a couple miles upstream. I am not sure now if it is as true as it was then, but once you get a mile or two up the trail, you have the creek to yourself.