National park visits fell 22.1% last month to 21,387,311 from 27,448,441 in Apr., 2019, as more than 400 national parks, including many of the most visited sites, remained closed due to the coronavirus. Year-to-date visits fell 8.3% to 66,482,115 down from 72,523,997. Among the larger parks that remained open, Whiskeytown NRA ... Log in to view full article.