 It is situated in the south of Santa Cruz Department on the border with Paraguay in the Cordillera Province (Charagua Municipality) and Chiquitos Province (Pailón Municipality and San José de Chiquitos Municipality).Kaa-Iya is a term from Guarani mythology which means "mountain owners", or a place where riches are found, in the sense of abundance of natural resources and the relationship between man and nature.It is principally known for containing the largest tropical wooded area in the world.