presidio

A garrison, especially a fortress of the kind established in the southwest United States by the Spanish to protect their holdings and missions.

A seat of government; especially, a place of military authority; a military post: used in the southwestern United States.

A place of deportation for criminals; a penitentiary.

A place of defense; a fortress; a garrison; a fortress; a garrison or guardhouse.

A garrisoned place, especially one that is or was, at one time, under Spanish control.

a fortress established in the southwestern United States by the Spanish in order to protect their missions and other holdings