; (2) Randolph County; (3) the Village of Prairie du Rocher; and (4) the Illinois Department of Natural Resources. 5. Acquisition of property (a) General authority Except as otherwise provided in this section, the Secretary is authorized to acquire lands and interests therein within the boundaries of the historical park by donation, purchase with donated or appropriated funds, and exchange. (b) State and local properties Lands and interests therein that are owned by the State of Illinois, or any political subdivision thereof, may be acquired only by donation or exchange. 6. Donations The Secretary may accept and retain donations of funds, property, or services from individuals, foundations, or other public or private entities for the purposes of providing programs, services, facilities, or technical assistance that further the purposes of this Act. Any funds donated to the Secretary pursuant to this section may be expended without further appropriation. 7. Grant assistance The Secretary is authorized to make grants to park partners for projects not requiring Federal involvement other than providing financial assistance, subject to the availability of appropriations in advance identifying the specific grantee and the specific project. Projects funded through grants under this section shall— (1) be used only for construction and development on non-Federal property within the boundaries of the historic district; (2) support the purposes of the historical park; and (3) enhance public use and enjoyment of the historical park. 8. Definitions In this Act: (1) Historic district The term historic district means the Prairie du Rocher French Colonial Historic District listed on the National Registry of Historic Places. (2) Historical park The term historical park means the Prairie du Rocher French Colonial National Historical Park established by section 2(a). (3) Secretary The term Secretary means the Secretary of the Interior.