This 4 to 4-1/2 ft Diamondback was seen at a safe distance as it crossed the park road in late afternoon.
Sadly he was not alive. Not how I was wanting to see my first rattle snake. Please be cautious for snakes and turtles this time of year on roads.
Crotalus atrox, the western diamondback rattlesnake, is a venomous rattlesnake species found in the United States and Mexico. It is likely responsible for the majority of snakebite fatalities in northern Mexico and the second-greatest number in the USA after C. adamanteus. No subspecies is currently recognized.