(This measure has not been amended since it was reported to the House on May 17, 2004. The summary of that version is repeated here.)
Mount Rainier National Park Boundary Adjustment Act of 2004 - Modifies the boundary of Mount Rainier National Park (the Park) to include the area within the boundary specified on the map entitled "Mount Rainier National Park, Carbon River Boundary Adjustment" dated June 2003.
Authorizes the Secretary of the Interior to acquire, only with the owner's consent, by donation, purchase, or exchange: (1) land or interests, totaling not more than 800 acres, and improvements thereon, within the boundary for development of camping and other recreational facilities; and (2) lands or interests, totaling not more than one acre, and improvements thereon in the vicinity of Wilkeson, Washington, for a facility to serve visitors to public lands along the Carbon and Mowich Corridors.
Requires lands acquired under this Act to be administered by the Secretary as part of the Park in accordance with applicable laws and regulations.
Directs the Secretary to manage that portion of Mt. Baker-Snoqualmie National Forest lying adjacent to the Park as identified on the map described above to maintain the area's natural setting in a manner consistent with its management as of June 2003.