DENVER (AP) - A snowboarder who sued Aspen Skiing Co. after an employee hit him with a snowmobile in 2006 has lost an appeal in the case.

The U.S. Tenth Circuit Court of Appeals in Denver sided with the resort in its dispute with Chris Robinette. Robinette sued the company after colliding with a snowmobile driven by an employee at the Snowmass Ski Area in 2006.

A three-judge panel concluded that Robinette couldn't sue for damages because he signed a waiver when he bought his season ski pass.

Robinette suffered a broken leg and kneecap when he collided with a snowmobile being driven up the slope by a lift maintenance worker.

Aspen Skiing Co. said the maintenance worker was driving the snowmobile responsibly and that Robinette took a blind jump.