One of my (many) favorite areas! The pictured rocks/pictographs on Crooked are amazing. Just a little more paddling to the west and you can stop at the famed Table Rock camp site. You can spend some time on Fourtown - lots of logging relics. One of the campsites (and areas around it) early on as you enter the lake (SE bay, as memory serves) - is loaded with logging camp rubbish, and if you hike around, you can find everything from an old truck to foundations of buildings, etc. If the water is not too low, going up to Moosecamp also will reveal logging leftovers, including some logs in the creek with hardware still attached. If you get your hands on some old maps, there are rail grades still visible / hike-able in the Fourtown area.