It’s back (and expanded)… Ski Free program for BOGO lift tickets to Copper Mountain, Crested Butte, Monarch, Powderhorn or Sunlight Mountain Resort. In years past, this was a Shell-only promotion, but now Exxon and Mobil are on board. Here’s how it works: 1. Stop by any participating Exxon, Mobil or Shell gas station. (Exxon & Mobil stations have vouchers now, Shell stations have vouchers starting January 19); 2. Pump 10 gallons or more; 3. Ask the station attendant for a validated SKI FREE voucher and to stamp your gas receipt; 4. Take the validated, stamped voucher and gas receipt to the participating ski area’s lift ticket window; and 5. Purchase a one-day, full-price adult lift ticket and receive a second one FREE. (Both tickets must be used on the same day). The program runs through April 16 or until ski areas close for the season. Each participating resort has some restrictions and/or blackout dates, so be sure to check your favorite before heading out.