San Luis Potosí, state (1990 pop. 2,003,187), 24,417 sq mi (63,240 sq km), central Mexico. San Luis Potosí is the capital. Most of the state lies on the eastern tablelands of Mexico's central ...

Pánuco, river, c.315 mi (510 km) long, rising as the Santa María River in San Luis Potosí state, N central Mexico, and flowing generally east to empty into the Gulf of Mexico near Tampico. It ...

Calleja del Rey, Félix María, 1750–1826, Spanish general, viceroy of New Spain (1813–16), conde de Calderón. In command of the post of San Luis Potosí when the revolution under Hidalgo y Costi...

Huastec, indigenous people of the Pánuco River basin, E Mexico. They speak a Mayan language but are isolated from the rest of the Mayan stock, from whom they may have been separated prior to t...

Mexico, Span. México or Méjico, officially United Mexican States, republic (2005 est. pop. 106,203,000), 753,665 sq mi (1,952,500 sq km), S North America. It borders on the United States in th...

Bolivia, officially Republic of Bolivia, republic (2005 est. pop. 8,858,000), 424,162 sq mi (1,098,581 sq km), W South America. One of the two inland countries of South America, Bolivia is shu...