Keystone Resort is still planning to open Friday, which would make it the first Front Range ski area to run lifts, despite Summit County’s return to stricter coronavirus restrictions. The county, which is home to Keystone, Arapahoe Basin, Loveland Ski Area and Copper Mountain, is moving back to safer-at-home level orange, formerly called safer-at-home Level 3, as COVID-19 cases continue to rise. This sets a new 10 p.m.