The boundaries of the Mount Rainier National Park as established in the Act of March 2, 1899 (
30 Stat. 993), as amended; (
16 U.S.C. 91–110b), are further revised to add to the Park approximately two hundred and forty acres, and to exclude from the park approximately thirty-one and one-half acres, as generally depicted on the map entitled “Mount Rainier National Park Proposed 1987 Boundary Adjustments”, numbered 105–80,010B and dated January 1987, which shall be on file and available for public inspection in the Washington office of the National Park Service, United States Department of the Interior and at Mount Rainier National Park.