State (pop., 2000: 2,299,360), northeastern Mexico.
It has an area of 24,351 sq mi (63,068 sq km), and its capital is San Luis Potosí . It is a fertile area, and crops are cultivated in the uplands and in the lower tropical valleys. Livestock raising is important, and hides, tallow, and wool are exported. Some of the richest silver mines in Mexico are located in the state.