Lampropeltis greeri (Durango Mountain Kingsnake)

Sierra Fría, western Aguascalientes

This mountainous area, west of La Congoja, consists of habitat more typically associated with greeri. Small, intermittent streams traverse the region, and Banded Rock Rattlesnakes are common. Twin-spotted Rattlesnakes (Crotalus p. pricei) have been recorded here, but are found rarely. Elevation 8460 ft/2577 m. (July 2006).