For the purpose of establishing in the National Capital area a park for the performing arts and related educational programs, and for recreation use in connection therewith, the Secretary of the Interior is authorized to establish, develop, improve, operate, and maintain the Wolf Trap National Park for the Performing Arts in Fairfax County, Virginia. The park shall encompass the portions of the property formerly known as Wolf Trap Farm and Symphony Hill in Fairfax County, Virginia, to be donated for park purposes to the United States, and such additional lands or interests therein as the Secretary may acquire for purposes of the park by donation or purchase with donated or appropriated funds, the aggregate of which shall not exceed one hundred and forty-five acres.