Make your reservations early if you need a place to stay. There will not be a hotel block. We highly recommend getting a room for the overnight of the 600k even if you are planning on riding straight through. Having the option and a place to shower and change/keep clothing and devices charging makes everything easier.
Already a GLR favorite, this 200 mile loop through Hebron, Evansville, and Albany that hits classic sights along Turtle Creek, a bit of the driftless and many rollers. Known for super quiet roads, it is a real jewel to ride. There have been considerable road improvements along Creek Road this year.
You may stop anywhere you like along this route. Particularly good places are Capron (Caseys), Clinton (Mobil), Brodhead(Kwik Trip), Albany (Marathon), Evansville (Caseys), Milton (Kwik Trip), and Darien (Super Express). The last possible stop at Hebron closes fairly early.