Governmental actions legalizing the transfer of ownership of land from the government to private parties.
Congress was given the power to dispose of land owned by the federal government in the property clause (Article IV, section 3, clause 2) of the U.S. Constitution. Using this power, Congress sold or granted most federal land to states, companies, or people, sometimes for the construction of projects for the benefit of the public, such as railroads.
In Fletcher v. Peck
In Fr mont v. United States
Fletcher v. Peck