 They are surrounded at lower elevations by the San Lucan xeric scrub, which lies between sea level and elevation.Above 800 meters elevation, the dry forests transition to the subhumid and temperate Sierra de la Laguna pine-oak forests.The predominant tree species of the dry forests are the Mauto ("Lysiloma divaricatum"), Palo blanco ("L. candidum"), Cajalosucho ("Bursera microphylla") and Palo zorrillo ("Hesperalbizia occidentalis").