Promptly following enactment of this Act [
Nov. 12, 1996], the Secretary of the Interior shall seek to acquire by donation or exchange those lands within the boundaries of Rocky Mountain National Park owned by the city of Longmont, Colorado, that are referred to in section 111(d) of the Act commonly referred to as the ‘Colorado Wilderness Act of 1980’ (
[Public Law 96–560];
[94 Stat. 3272];
16 U.S.C. 192b–9(d)).