The 1979–80 Colorado Rockies season was the franchise's fourth season in Colorado and their sixth in the NHL. Trying to jolt the fan base and create some excitement for the club, the team hired Don Cherry, who had been fired by the Boston Bruins, and installed him as the new head coach. In addition, a major mid-season trade netted the Rockies legendary goal-scorer and future Hall-of-Famer Lanny McDonald from the Toronto Maple Leafs.