Thunderhawk is a Lake County Forest Preserve course, and was designed by Robert Trent Jones Jr., and plays to 7,136 yards, 136 slope from the back tees. It's located in Libertyville near the Wisconsin border off I-94. The layout is forgiving wide fairways with a few good solid risk/reward type holes through the forest, marsh and meadow design. Half the holes wander through open meadow while the other half are carved through the trees. Plenty of challenge with water hazards, fairway bunkers, and the wide fairways that narrow to areas bordered by deep rough. The bunkers guard the front and sides greenside, and the greens are mildly undulating and quick.