(a) In general
There is hereby established the Mississippi National River and Recreation Area (hereinafter in this subchapter referred to as the "Area") which shall consist of the State designated Mississippi Critical Area encompassing that portion of the Mississippi River and adjacent lands generally within the Saint Paul-Minneapolis Metropolitan Area, as depicted on the map entitled Mississippi National River and Recreation Area numbered MI–NRA/80,000 and dated April 1987. The map shall be on file and available for public inspection in the offices of the Department of the Interior in Washington, District of Columbia, and in the offices of the Metropolitan Council of the Twin Cities Area in Saint Paul, Minnesota.

(b) Boundaries
The Secretary of the Interior (hereinafter referred to as the "Secretary") shall publish in the Federal Register, as soon as practicable after November 18, 1988, a detailed description and map of the boundaries established under subsection (a).