The Altiplano comprises four major basins formed by mountainous spurs that jut eastward from the Cordillera Occidental about halfway to the Cordillera Oriental .
The Altiplano is the high plateau between the previous range and the Cordillera Oriental .
The Altiplano , the high plateau between the previous range and the Cordillera Oriental , comprises four major basins formed by mountainous spurs that jut eastward from the Cordillera Occidental about halfway to the Cordillera Oriental .