Signs offer tips for preventing the spread of the new coronavirus, as well as the closed status of the Henry M. Jackson Visitor Center, at Paradise, Wednesday, March 18, 2020, at Mount Rainier National Park in Washington state. Most national parks are remaining open during the outbreak of the new coronavirus, but many are closing visitor centers, shuttles, lodges and restaurants in hopes of containing the spread of the coronavirus. (AP Photo/Ted S. Warren)

March 22, 2020