The Casa de Gobierno faces the Plaza 25 de Mayo and is the working seat of the Chaco provincial government. The building dates from the early 20th century and is a typical Argentine provincial palace — a long pale facade with arched windows and a central pediment.
Visitors are not normally admitted beyond the entrance hall. The facade and the colonnaded ground floor make it a fixed point on any walking tour of the centre, and the building lights up handsomely after dark.