Head down County Trunk J heading back towards Minocqua/Woodruff. About 3/4 of a mile before the fish hatchery is Carrol Lake on your right, launch and state campground entrance together. No daily charge for launching boat. Have had great success there this summer, both with perch and crappies. See earlier posts under Carrol Lake. Suggest you do get there rather early as parking area is small, only 5-6 parking spots. Other launch site is to go past fish hatchery and turn right on Lake Madeline Road. After rearing ponds on right is road to Madeline Launch. That is quieter and will handle a few more rigs. From there you have to go through channel over to Carrol, up on Madeline about 3/4 mile on right. Take it slow going through channel, stay to middle. And, jugs mark some big shallow rock slabs. Used minnows under slip bobbers and also 1/16 ounce jigs with chartreuse jig bodies. All were fished about 3-4 feet down near weed edges. Watch out for very shallow sandbar on north end of Birch Island, northern most island on Carrol. Fishing NW of that hump off edge of weeds you will find some nice perch a little deeper. Good luck and will watch for your report wherever you fish. Oh yes, you can also fish in the tail race pool below the Rainbow Flowage dam. Good platform to fish from. Smaller crappies, but selective keeping will give you some nice fish.
Fishing is relaxing and fun, but catching is when it really becomes fun!