Went up there last summer and all we saw were small cuts. No rainbow but they might be in there. Bridges are built so all you have to do is hike around the lake to a few spots to fish from shore. It's a big lake so if in a canoe or belly boat be careful - that wind can come up in seconds. Much safer to fish from shore - any spinner, small flatfish, worms and bobber will do. They are so hungry they will bite on anything you throw them. I think power bait dough balls would work the best.
Have fun.
Long rod, tight line