Initially observed juvenile coiled up near granite boulder, underneath thicket of Marah macrocarpus,within burned out chaparral at 16:28.
Dead on the road, probably roadkill.
Crotalus is a genus of venomous pit vipers found only in the Americas from southern Canada to northern Argentina. The name is derived from the Greek word krotalon, which means "rattle" or "castanet", and refers to the rattle on the end of the tail which makes this group (genera Crotalus and Sistrurus) so distinctive. 32 species are currently recognized.