range from the Rio Grande de Santiago in Mexico's Jalisco state through Nayarit, Sinaloa, Durango, Sonora, and Chihuahua, and include the Madrean Sky Islands of Arizona and New Mexico. Sierra Madre Oriental pine–oak forests extend along the Sierra Madre Oriental ranges of Texas and Mexico, from mountaintop enclaves in west Texas through Coahuila, Tamaulipas, Nuevo León, San Luis Potosí, Querétaro and Guanajuato. Trans-Mexican Volcanic Belt pine–oak forests Sierra Madre del Sur pine–oak forests Sierra Madre de Oaxaca pine–oak forests See also Conifers of Mexico Ecoregions of Mexico External links Madrean Pine-Oak Woodlands (Conservation International) Sierra Madre Occidental Pine-Oak Forests images at bioimages.vanderbilt.edu (slow modem version) Tropical and subtropical coniferous forests Temperate broadleaf and mixed forests Ecoregions of Mexico Forests of Mexico Montane forests Sierra Madre de Chiapas Sierra Madre de Oaxaca Sierra Madre del Sur Sierra Madre Occidental Sierra Madre Oriental Trans-Mexican Volcanic Belt . Tropical and subtropical coniferous forests of the United States Ecoregions of the United States Nearctic ecoregions Neotropical ecoregions