Grand Canyon National Park was second with 6 million visitors, WKRN reported. The parks have held the two top spots since 1990, according to the National Park Service.
While the park is popular, few visitors are venturing to the Tennessee foothills these days because of the coronavirus pandemic and stay-at-home orders.
All park areas in the Great Smoky Mountains, except for the Foothills Parkway and Spur, are closed through at least April 30, according to the National Park Service.
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