Primero de Mayo is a south eastern department of Chaco Province in Argentina.
The provincial subdivision has a population of about 9,000 inhabitants in an area of 1,864 km2, and its capital city is Margarita Belén, which is located around 1,035 km from the Capital federal.
Settlements Colonia Benítez Margarita Belén Barrio San Pedro Pescador
References
External links Massacre of Margarita Belén (Spanish)