16 U.S.C. § 410vv–1

(a) In general There is established as a unit of the National Park System the Marsh-Billings-Rockefeller National Historical Park in Windsor County, Vermont (hereinafter in this subchapter referred to as the “park”). (b) Boundaries and map (1) The park shall consist of a historic zone, including the Marsh-Billings-Rockefeller Mansion, surrounding buildings and a portion of the area known as “Mt. Tom”, comprising approximately 555 acres, and a protection zone, including the areas presently occupied by the Billings Farm and Museum, comprising approximately 88 acres, all as generally depicted on the map entitled “Marsh-Billings-Rockefeller National Historical Park Boundary Map” and dated November 19, 1991 . (2) The map referred to in paragraph (1) shall be on file and available for public inspection in the appropriate offices of the National Park Service, Department of the Interior.