Mammoth Cave Boundary Adjustment Act

Full Title:
Mammoth Cave National Park Boundary Adjustment Act of 2025

Summary#

This bill would change the boundary of Mammoth Cave National Park. It amends Section 11 of the Act of June 5, 1942 to (1) make a $350,000 figure adjustable for inflation using the Consumer Price Index published by the Bureau of Labor Statistics, and (2) allow the Secretary of the Interior to acquire about 551.14 acres shown as "Proposed Addition" on the map titled "Mammoth Cave National Park Proposed Southern Boundary Expansion Edmonson and Barren Counties, Kentucky," numbered 135/177,967, and dated May 2025, for inclusion in the park. The bill was introduced May 8, 2025 by Senator Mitch McConnell and referred to the Committee on Energy and Natural Resources; hearings were held.

What it means for you#

The bill authorizes the federal Interior Department to add the specified 551.14 acres to Mammoth Cave National Park. This would change the park boundary to include the land shown on the May 2025 map. No publicly available information on who will sell land, how the land will be acquired, timing, or local impacts is provided in the bill text or metadata.

Expenses#

The bill makes the listed $350,000 amount subject to annual adjustment for inflation using the Consumer Price Index. The bill text and provided metadata do not include estimates of total acquisition costs, funding sources, or other government spending. No publicly available information on overall costs is provided.

Proponents' View#

No publicly available information.

Opponents' View#

No publicly available information.