(a) Lands included in park 
In furtherance of the purposes of section 430g of this title, the Gettysburg National Military Park (hereafter in sections 430g–4 to 430g–10 of this title referred to as the park) shall on and after August 17, 1990, comprise the lands and interests in lands within the boundary generally depicted as Park Boundary on the map entitled Gettysburg National Military Park Boundary Map, numbered NPS 305/80034B, and dated March 1990, which shall be on file and available for public inspection in the Office of the Director of the National Park Service, Department of the Interior.

(b) Additional land 
In addition to the land identified in subsection (a) of this section, the park shall also include the property commonly known as the Wills House located in the Borough of Gettysburg and identified as Tract P021 on the map entitled Gettysburg National Military Park numbered MARO 305/80,011 Segment 2, and dated April 1981, revised May 14, 1999.

(c) Lands excluded from park 
Lands and interests in lands outside of the boundary so depicted as Park Boundary on the maps referred to in subsections (a) and (b) of this section are hereby excluded from the park and shall be disposed of in accordance with the provisions of section 430g–5 (c) of this title.