Grand Canyon National Park

Grand Canyon National Park recorded 4,430,653 recreation visits in 2025. Congress designated the national park on February 26, 1919. Grand Canyon National Park's management page dates the national park designation to an act of Congress on February 26, 1919. Earlier steps include a forest reserve designated in 1893 and Grand Canyon National Monument, established by President Theodore Roosevelt in 1908. The Grand Canyon National Park Enlargement Act followed on January 3, 1975. UNESCO listed the park as a World Heritage Site on October 26, 1979, and the International Dark-Sky Association designated it an International Dark Sky Park in June 2019. A park history page says annual visitation rose from 38,000 in 1919 to 4.7 million in 2022. The National Park Service's March 13, 2026 release places 2025 recreation visits at 4,430,653, fourth among national parks.