Louisiana Louisiana Louisiana (, ) is a state in the Deep South region of the southeastern United States. It is the 31st most extensive and the 25th most populous of the 50 United States. Louisiana is bordered by Arkansas to the north, Mississippi to the east, the Gulf of Mexico to the south, and the state of Texas to the west. A large part of its eastern boundary is demarcated by the Mississippi River. Louisiana is the only U.S. state with political subdivisions termed parishes, which are equivalent to counties. The state's capital is Baton Rouge, and its largest city is
Louisiana State Museum Science & Technology, and the Decorative Arts Collection. The second facility is the Old U.S. Mint on Esplanade Avenue, which houses the Document Archives and Jazz & Music Archives. The Mint houses the Louisiana Historical Center, which gives amateur and professional researchers the opportunity to access the Document Archives. In addition to maps and manuscripts, the Center houses sheet music, microfilm, scrapbooks, pamphlets, and newspapers. Both collections facilities are accessible by appointment only. Official website Louisiana State Museum The Louisiana State Museum (LSM), founded in New Orleans in 1906, is a statewide system of National Historic Landmarks and modern structures