Wis. Stat. § 1.05: United States sites for aids to navigation.

Whenever the United States shall desire to acquire title to any land belonging to the state and covered by the navigable waters of the United States, for sites for lighthouses, beacons, or other aids to navigation, the governor may, upon application therefor by any authorized officer of the United States, setting forth an exact description of the place desired, and accompanied by a plat thereof, grant and convey to the United States, by a deed executed by the governor in the name of the state and under the great seal, all the title of the state thereto; and such conveyance shall be evidence of the consent of the legislature to such purchase upon the conditions specified in s. 1.03.