S-3519-117
Became Public Law No: 117-345.
Sponsored by John Boozman (R-AR)
What it does
This law officially designates the approximately 3,292-mile route of the historic Butterfield Overland Mail Company — known as the Ox-Bow Route — as a National Historic Trail. The route runs from St. Louis, Missouri, and Memphis, Tennessee, westward through Arkansas, Oklahoma, Texas, New Mexico, and Arizona, ending in San Francisco, California. The federal government is explicitly prohibited from using eminent domain or condemnation to acquire private land along the trail, and may only acquire land outside existing federal boundaries with the voluntary consent of the landowner.
Who benefits
History enthusiasts, tourists, and recreational users who gain access to a formally recognized and federally supported trail corridor. Communities along the route in eight states (Missouri, Tennessee, Arkansas, Oklahoma, Texas, New Mexico, Arizona, and California) that may see increased heritage tourism and economic activity. Local governments and preservation organizations that can leverage the federal designation to pursue grants and partnerships. The National Park Service, which gains a new trail to administer and promote.
Who is hurt
Private landowners along the 3,292-mile corridor who may face increased foot traffic, trespassing, or pressure to allow public access near their property, even though the bill prohibits forced acquisition. Taxpayers who would fund the Department of the Interior's administration, signage, mapping, and maintenance of the newly designated trail. Existing National Historic Trail programs that may compete for the same limited federal funding and staff resources.
Supporters argue
Supporters argue that the Butterfield Overland Mail route is a defining chapter in American westward expansion, connecting the pre-Civil War nation and demonstrating the possibility of transcontinental communication and commerce. Formal designation as a National Historic Trail would preserve this cultural heritage for future generations, create a framework for coordinated stewardship across eight states, and stimulate heritage tourism in rural communities that have few other economic drivers. Critically, the bill's explicit prohibition on eminent domain and condemnation ensures that private property rights are fully protected — no landowner can be forced to give up their land, making this a voluntary, community-supported preservation effort.
Opponents argue
Opponents argue that adding a 3,292-mile trail to the National Historic Trail system creates a new, open-ended federal administrative and financial obligation at a time when existing trails already face maintenance backlogs and funding shortfalls. They contend that without the ability to acquire land along the corridor, the trail designation may be largely symbolic — lacking the connected, publicly accessible route needed to deliver meaningful recreational or educational value. Critics may also question whether the federal government, rather than the eight affected states or private preservation groups, is the appropriate entity to manage and fund the long-term stewardship of a route that crosses predominantly state and private land.
Constitutional context
The designation rests on Congress's broad authority to manage federal property and promote the general welfare. The National Trails System Act, under which this designation falls, is grounded in the Commerce Clause and the Property Clause (Art. IV, Sec. 3). The bill's explicit prohibition on eminent domain directly addresses Takings Clause concerns (Fifth Amendment), ensuring no taking without just compensation can occur under this authority. The post-Sackett v. EPA (2023) and Loper Bright (2024) environment of heightened scrutiny of agency land-use authority makes the statutory prohibition on condemnation a legally significant safeguard, limiting Department of the Interior discretion and reducing potential constitutional challenges.
Checks and balances
Congress exercises its legislative power to create a new federally designated trail, expanding the Department of the Interior's administrative portfolio. However, the bill simultaneously constrains executive branch authority by explicitly stripping the Department of the Interior of the power to use eminent domain or condemnation — a notable legislative check on agency land-acquisition tools. Land acquisition outside existing federal boundaries requires landowner consent, further limiting executive discretion. No new judicial authority is implicated.
Historical precedent
The National Trails System Act of 1968 established the framework for National Historic Trail designations. Prior comparable designations include the Oregon National Historic Trail (1978), the Santa Fe National Historic Trail (1987), and the Pony Express National Historic Trail (1992), all of which followed similar routes through western states and involved the same voluntary land-access model.