Signs at the reception desk at the National Park Inn at Longmire offer tips to prevent the spread of the COVID-19 virus and ask that guests limit use of a sitting area to 10 people or fewer, at Mount Rainier National Park, Wednesday, March 18, 2020, 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 its spread. (AP Photo/Ted S. Wa…

March 22, 2020