A federal bankruptcy judge has approved the $14.8 million sale of Glenwood Caverns Adventure Park to an ownership group controlled by Seattle-based Gondola Ventures, according to reporting from The Denver Post. United States Bankruptcy Court Chief Judge Kimberly Tyson ruled Tuesday that GVC Glenwood LLC, an ownership group 80% controlled by Gondola Ventures, can purchase the mountaintop amusement park. Glenwood Caverns founder Steve Beckley will…