WASHINGTON, Feb. 17 -- The U.S. Department of the Interior's National Park Service issued the following news release: While some of the most well-known national parks again had record visitation in 2021, numbers across the entire National Park System remained below pre-pandemic totals. These findings were released today as the National Park Service published its official annual visitation statistics for 2021. Of 423 parks in the National Park System, just 25 received more than 50 percent of th  more