What is "rock rattlesnake"

n. mountain rock dweller of Mexico and most southern parts of United States southwest [syn: Crotalus lepidus]

Rock rattlesnake may refer to:

• Crotalus horridus, a.k.a. the timber rattlesnake, a venomous pitviper species found in the eastern United States
• Crotalus lepidus, a.k.a. the blue rattlesnake, a venomous pitviper species found in the southwestern United States and northern central Mexico