Travel ‘Now’s not the time’: Joshua Tree National Park closed to campers and cars, but crowds keep coming March 23, 2020March 23, 2020Christopher Damien, Palm Springs Desert SunComments Off on ‘Now’s not the time’: Joshua Tree National Park closed to campers and cars, but crowds keep coming While Joshua Tree National Park closed campgrounds and roads to vehicles Saturday, crowds of bikers and campers kept coming.