There are more lakes in there than just Hancock and Calligan that can grow fairly big fish, but I'll never tell. It would ruin the adventure for all ya, exploring them out.
Like someone said, you might not get the big ones at all tossing power bait. Try scuds,chronies,and minileeches in there, that's 70% of the natural feed up there.Later on use dry mosquotes or dry chronie patterns,if you see them dimpling in the evenings.
Oh, take beetle and ant patterns too in the summer.
I used to get all nice sized Cutthroats in Hancock and Calligan both. Surprised to hear someone say they got brooks, but that would be a natural if someone stopped stocking them with cutts as I suspect might have happened.