Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Santiago del Estero is a province of Argentina, located in the north of the country. Neighbouring provinces are from the north clockwise Salta, Chaco, Santa Fe, Córdoba, Catamarca and Tucumán.The autochthonous inhabitants of these lands were the Juríes-Tonocotés, Sanavirónes and other tribes. Intriguingly, Santiago del Estero is still home to about 100,000 speakers of the local variety of Quechua, making this the southernmost outpost of the language of the Incas. Quite when the language reached the area, and how, remains unclear, however - it may even have arrived only with the native troops that accompanied the first Spanish expeditions.