This bill matters because having accurate and legally defined boundaries for national parks is crucial for effective land management, resource protection, and future planning. While the change in acreage from 100 to 102.18 acres is small, it ensures that the park's official legal description matches its actual, surveyed area.

If this bill becomes law, it will clarify exactly what land belongs to Gateway Arch National Park, removing any potential confusion that could arise from outdated maps or acreage figures. If it doesn't become law, the official legal description will remain slightly inaccurate, potentially leading to minor inconsistencies in property management or development discussions around the park's edges over time.