Under the direction of nationally known golf course architect Arthur Hills. Long regarded as a championship layout, Hills's fine-tuning brought improvements that made the course more playable without diminishing its challenge. Bruce Swenson, then greens committee chairman, was instrumental in coordinating the project from concept to execution. Major changes included:
- Bunkers. Heavy rains had a tendency to wash sand from the original steep-faced pits, creating a maintenance problem. Also, the traps didn't play well. The architect changed all of the bunkers and added a pot bunker on #11 hole.
- Tees. Women's tees were changed on four carefully chosen holes. Originally, the course was set up as a par 76 for women. The new tees took off an average of 122 yards per hole, letting women play the course at par 72.
- Trees. Hills removed a large spruce tree located just beyond the bunkers on the left side of the #13 fairway. His rationale: "A golfer capable of driving the ball over the bunkers should not have a good shot penalized by hitting or getting a poor lie under the imposing tree." Removal of the tree also opened up the view of the gracefully contoured fairway and green some 444 yards from the elevated tee box, already considered the course's signature hole based on a view that stretched to southern Indiana.