Coronado National Memorial (7 sq mi /18.1 sq km), Cochise co., 15 mi/24 km S of Sierra Vista, on Mex. (Sonora) border, SE Ariz. Bounded N and W by Coronado Natl. Forest. Authorized 1952. Area near Francisco Vásquez de Coronados point of entry (15401542) into what is now the U.S., first Eur. exploration of SW U.S. Includes desert flora and fauna.