The Mountain Course at Osage National Golf Club sits in the Lake of the Ozarks region of central Missouri, designed by Arnold Palmer and opened in the early 1990s as part of a residential golf community. Palmer's routing takes advantage of the area's characteristic Ozark topography, with significant elevation changes, rock outcroppings, and wooded corridors that define the playing corridors. The course moves through dense hardwood forests and along ridgelines, offering views of the surrounding hills and lake country below. The design reflects Palmer's preference for strategic options and risk-reward scenarios, with doglegs that tempt aggressive lines and greens positioned to reward accurate approach play. Elevation changes factor into club selection throughout the round, and the natural rock formations native to the Ozarks appear both as landscape features and occasional hazards. Water comes into play on several holes, though the primary defenses are the rolling terrain and the premium placed on position off the tee. Osage National operates as a semi-private facility, with the Mountain Course serving as one of two eighteen-hole layouts on the property. The club caters to both members and resort guests visiting the Lake of the Ozarks area, a popular recreational destination in Missouri. The course provides a contrast to flatter Midwest layouts, with its hillside lies and elevation-driven shot values characteristic of golf in the Ozark highlands.