Denali National Park in Alaska announced on Friday it will be reinstating a mask mandate in all federal buildings located on park grounds and park buses due to a rise in coronavirus cases.

The mask mandate applies to everyone over the age of two regardless of vaccination status and is required in federal buildings on park grounds, including “park visitor centers, administrative offices, lodges, gift shops, and restaurants,” the Denali National Park and Reserve stated.

Individuals will also be required to wear masks on all park buses, courtesy shuttle buses, and transit and tour buses.

Denali joins five other national parks that recently reimplemented masking requirements, including Yellowstone, Grand Teton, Glacier, Yosemite, and Grand Canyon, the New York Times reported. Yellowstone reintroduced its mandate this month; the rest reinstated theirs in June.

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