At the exact same spot, last year, I lost my fly line to a bull trout.
Hooked her with a streamer, and then she went around the big logs at the lower pool and my lines got tangled underwater at the very deep pretty badly.
watched the bull trout got off the hook and swim away, which is good. But i think my line is still down deep in that pool on the logs.
It was Rio Grand I lost =(