Big Bend National Park Boundary Adjustment Act

This bill authorizes the Secretary of the Interior to expand Big Bend National Park by acquiring approximately 6,100 acres of land through voluntary means - such as donation, purchase from willing sellers, or land exchange - without using eminent domain. The land, depicted on a specific map, would become part of the park boundary once acquired. The bill directly affects the park's physical boundaries and landowners whose property is included in the designated area. The key provision is the formal process for adding this land to the park, with the map serving as the official reference for the adjustment.