Photo by Ashley Endemano/UnSplash Grand Canyon National Park is one of the national parks that have recently reinstated mask policies. What do Denali, Glacier, Grand Canyon, Grand Teton, Yellowstone, and Yosemite national parks have in common? In addition to being some of the largest and most popular protected public spaces in the United States, they’ve all recently reinstated indoor mask policies due to a rise in COVID cases throughout the...