The 26-year-old last tasted World Cup success in Saas-Fee in November 2009 - that her second career victory after a maiden triumph in Bardonecchia more than five years previous.
However Bright, who was ninth in the season opener in Cardrona in August in her first World Cup start since her last win, was on form in Colorado and claimed the win with her first-run effort of 85.75.
American Kelly Clark took second with a score of 82.0 from her second run while Spaniard Queralt Castellet was narrowly behind in third also with her first-run effort of 80.75.
Clark, who won the season opener, sits clear at the top of the overall World Cup standings with 1800 points while Bright is second with 1290 and Castellet third with 1200.
And Nathan Johnstone ensured Australia had two reasons to celebrate in Colorado as he won the men's event to take the overall lead in the World Cup rankings.
Johnstone, the 2011 world champion, had it all to do to claim his fourth career win after American Luke Mitrani posted 92.75 with his first outing with the Australian only managing 85.50.
However Johnstone was more than up to the challenge and produced a score of 94.75 second time out demoting Mitrani to second while another American Louie Vito was third with 86.75.
Johnstone, who was 15th in Cardrona, now has 1160 points with Japan's Shuhei Sato, 12th on Copper Mountain, second with 1020.