Gateway Arch National Park Boundary Revision Act of 2026 revises the park's boundary.
Gateway Arch National Park Boundary Revision Act of 2026 revises the boundary of Gateway Arch National Park. The bill updates the park's boundary description from "the Jefferson National Expansion Memorial" to "Gateway Arch National Park" and changes the acreage from one hundred acres to 102.18 acres. The revision is based on a map titled "Gateway Arch National Park Proposed Boundary Revision," numbered 366/189,627, and dated August 2023.
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