Never heard of this one before!
The Colorado Gems Cardis a discount card good for a few independent ski areas in Colorado. You pay $42 up front, then you can buy two-for-one or 30% off a single ticket at Cooper, Echo Mountain, Eldora, Granby Ranch, Hesperus, Loveland, Monarch, Powderhorn & Sunlight. (Two redemptions available at each resort.)
See the website for full terms & conditions.
Plus two tickets at Arapahoe Basin for $79 midweek or $99 weekends.
Maybe this is the mini-Indy?