Yeah, I caught a bunch of little 8 inch trout in big twin sister last year (can't remember, maybe brookies?). I think it was in June as there was still some snow on the trails and they were pretty hungry. Guessing the bite won't be quite as strong this time of year. There was also a group of elk across the lake in the morning. Also caught trout at some of the other lakes in the area (jug lake I think)