The state capital is Pachua[?]. Also in the state of Hidalgo is the town and ancient Toltec ruins of Tula.
ISO 3166-2 is MX-HID.
... (BND) Nazi Germany Abwehr, WW2 Gestapo Sicherheitsdienst (SD; Defunct) West Germany Bundesamt fur Verfassungsschutz[?] ...