The East Course at Merion plays 6,846 yards. Tight. Intellectually demanding. Five U.S. Opens have been played here, which tells you everything about what this layout values. Length was never the point. The rolling terrain around Ardmore forces blind shots. Wicker basket flagsticks. Navigation around the stone quarry that guards the par-3 11th. That quarry has stopped the best players who've ever walked this ground. Members caddie. Guests caddie. You walk. That's how it works here. This is American golf history in its plainest form.