Question: Name the province in the north of Argentina whose neighbouring provinces include Salta, Chaco and Tucuman and is represented by the Civic Front for Santiago which operates as a bloc in Congress?
Sentence (from "Civic Front for Santiago"): The Civic Front for Santiago (Spanish: "Frente Cívico por Santiago" ) is a provincial political electoral front in Santiago del Estero Province, Argentina.
Relevant evidence: Yes