El Potosí (el po-to-SEE), natl. park, San Luis Potosí, Mexico, 44 mi/70 km E of San Luis Potosí. Community of Santa Catarina is within the park, which incorporates portions of the Cañada Grande (a portion of the Río Verde watershed), along with the Valle de las Fantásmas (Valley of the Ghosts), a forested valley with a wide range of forest types. There are practically no public facilities and road access is largely limited to dirt tracks.
