What Are 'Crowned Greens' on a Golf Course?
Crowned greens go by many different names, some of them quite common. Those synonyms include convex greens, domed greens, turtleback or turtle greens, tortoise-shell greens, humped or humpback greens, and camel or camel-back greens. The term "crowned," meaning sloping away from the center or middle line, can also be applied to other parts of the golf course such as a teeing ground or fairway, but is most commonly applied to putting greens.
A news report about a college golf tournament published in The Daily Californian newspaper in 2004 began, "On a course loaded with slick, turtleback greens ..."
Writing about the Pinehurst No. 2 course, the authors of the book Golf's Finest Par Threes (affiliate link) wrote, "The fiftteenth measures a bit over 200 yards and combines one of Ross's most severely crowned greens with a false front, both aimed to repel your tee ball."
That second example of usage provides the main reason a golf course architect might choose to employ crowned greens: to make approach shots more difficult. On a golf course that has very few bunkers or water features or deep rough adjacent to or fronting its greens, crowned greens/domed greens are one way to give those otherwise unguarded greens a defense mechanism.
Crowned greens aren't alway purpose-built, however. They can actually develop incidentally over time through the buildup of soil or sand. Imagine thousands and thousands of golfers over time blasting out of a sand bunker toward a flagstick. Over many years, that sand that lands on the putting surface can start to add height to the area, and can create a crown around that pin location.
A green being crowned does not mean, though, that the green slopes away from the highest point uniformly. A turtleback green will still have flat areas (it has to in order to provide hole locations), other slopes and curves and swales and breaks.
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