In this May 27, 2020, file photo, a skier wears a face covering while negotiating the slope at the reopening of Arapahoe Basin Ski Resort, which closed in mid-March to help in the effort to stop the spread of the new coronavirus, in Keystone, Colo. Roughly seven months after the coronavirus cut the ski season short at the height of spring break, resorts across the U.S. and Canada are slowly picking up the pieces and figuring out how to safely reopen this winter. (AP Photo/David Zalubowski, File)