The National Park Service was established in 1916 by the Organic Act (pdf 52K).
Each national park site is created by its own enabling legistation. The enabling legislation (pdf 39K) for Fort Union National Monument was passed in 1954.
Within Title 36 of CFR, each park superintendent has the discretionary authority to establish more or less restrictive regulations in certain instances. These most specific rules are developed with public input to implement applicable law. These regulations are outlined in the 2020 Fort Union National Monument Superintendent's Compendium.
Other Park Policies Unmanned Aircraft
Fort Union National Monument is closed to public use activities involving unmanned aircraft. See the superintendent's compendium for details.
Park User Responsibility - It is the responsibility of visitors to understand and comply with all applicable state, local, and federal firearms laws before entering this park.As a starting point, please check with the New Mexico Department of Public Safety.
Weapons Prohibited in Federal Facilities - Federal law also prohibits firearms in certain facilities in this park; those places are marked with signs at all public entrances.