Stonewall's Old course is a minimalist layout designed by Tom Doak, about 45 miles northwest of Philadelphia. The challenging layout has a good amount of elevation change, including at the par-4 finisher, where the approach plays dramatically downhill to a green set in front of the old stone clubhouse. There are five strong par 3s, including the downhill fifth, where the green is guarded by wetlands short and a creek to the right. The club hosted the 2016 U.S. Mid-Amateur and the 2023 U.S. Women's Mid-Amateur.