Maddie Bowman has won the ladies' ski half-pipe event to conclude the United States' domination at Rosa Khutor Extreme Park.
Team USA have won 12 medals among the snowboarding and freestyle skiing events, including a sixth gold courtesy of Bowman, who adds to her own two X Games successes.
Marie Martinod of France, who only came out of retirement two years ago, finished in the silver medal position with a best score of 85.4.
Japan's Ayana Onozuka took bronze, edging out fourth-placed Virginie Faivre of Switzerland.