Before revision: Territorial extent of the overseas Spanish Empire Giacomo Gastaldi's 1548 map of New Spain, Nueva Hispania Tabula Nova At its greatest extent, the Spanish crown claimed on the mainland of the Americas much of North America south of Canada, that is: all of present-day Mexico and Central America except Panama; most of present-day United States west of the Mississippi River, plus the Floridas.
After revision: Territorial extent of the overseas Spanish Empire Giacomo Gastaldi's 1548 map of New Spain, Nueva Hispania Tabula Nova At its greatest extent, the Spanish crown claimed on the mainland of the Americas much of North America south of Canada, that is: all of modern Mexico and Central America except Panama; most of the United States west of the Mississippi River, plus the Floridas.