Seventeen-year-old Dusty Henricksen was among six winners on the final day of the Winter X Games, adding the snowboard slopestyle title to the knuckle huck gold medal he had already won in Aspen.
The American is the first snowboarder to win two gold medals on their X Games debut, and relegated Finland's Rene Rinnekangas to second place, with Norwegian Mons Røisland third.
More American gold medals followed in the men's ski slopestyle - won by Nick Goepper - and women's snowboard big air, where Jamie Anderson was victorious.
Anderson had already won slopestyle gold in Colorado and saw off Japanese rival Miyabi Onitsuka, who did receive a competition-best score of 47 for one run after becoming the first woman to land a cab double cork 1,260 in competition.
Shaun White - an eight-time X Games superpipe champion and three-time Olympic halfpipe king - pulled out of the men's snowboard superpipe, robbing spectators of an anticipated duel with Australia's defending champion Scotty James.
However, 19-year-old Japanese snowboarder produced a upset and won, with James second and fellow Japanese teenager Ruka Hirano third.
Norway's Marcus Kleveland won the men's snowboard big air, scoring 48 on one run after becoming the first person to land a backside quad cork 1,800 Indy grab.
Compatriot Røisland was third, with Swede Sven Thorgren second.
Sweden did win the ski knuckle huck, however, through Henrik Harlaut.
Due to the coronavirus pandemic, spectators could not attend this year's event in Aspen.