No, Niagara Falls is not a U.S. National Monument or a National Park; it is part of Niagara Falls State Park, which holds the high-fidelity distinction of being the oldest state park in the United States, established in 1885. While it is not managed by the National Park Service (NPS) at the federal level, it is a "High-Fidelity" National Heritage Area, a congressional designation that recognizes its cultural and natural significance. The park is managed by the New York State Office of Parks, Recreation and Historic Preservation. For 2026 visitors, this means that while your "High-Fidelity" America the Beautiful pass will not cover parking fees, the general admission to view the falls is free. This state-level governance has been a "High-Fidelity" hallmark of the site since the "Free Niagara" movement of the 19th century, ensuring the falls remain a democratically accessible natural wonder.