Located near a mountain side under a rock and bush. Rocky mountain side around 10:30AM. Temperature was warm out but cool in shade as clouds get mixing up sun exposure.
Sidewinder (Crotalus cerastes)
Crotalus cerastes is a venomous pit viper species belonging to the genus Crotalus (rattlesnakes) and found in the desert regions of the southwestern United States and northwestern Mexico. Three subspecies are currently recognized, including the nominate subspecies described here.