Several permanent streams descend from the volcanic peaks and run from east to west through the area.

[2] Annual mean temperature ranges from 12 to 18º C.[2] According to the National Biodiversity Information System of Comisión Nacional para el Conocimiento y Uso de la Biodiversidad (CONABIO) in El Jabalí Flora and Fauna Protection Area there are over 1,540 plant and animal species from which 63 are in at risk category and 58 are exotics.

[2][5] Native mammals include white-tailed deer (Odocoileus virginianus), coyote (Canis latrans), gray fox (Urocyon cinereoargenteus), raccoon (Procyon lotor), and nine-banded armadillo (Dasypus novemcinctus).

[2] 100 bird species have been recorded here, including long-tailed wood partridge (Dendrortyx macroura), banded quail (Philortyx fasciatus), sparkling-tailed woodstar (Tilmatura dupontii), golden-cheeked woodpecker (Melanerpes chrysogenys), grey-crowned woodpecker (Colaptes auricularis), white-striped woodcreeper (Lepidocolaptes leucogaster), spotted wren (Campylorhynchus gularis), white-bellied wren (Uropsila leucogastra), brown-backed solitaire (Myadestes occidentalis), slaty vireo (Vireo brevipennis), golden vireo (Vireo hypochryseus), fan-tailed warbler (Basileuterus lachrymosus), and rusty-crowned ground sparrow (Melozone kieneri).

[2] El Jabalí was decreed a Forest Protection Area and Wildlife Refuge on 14 August 1981 by President José López Portillo.