Species Reptiles & AmphibiansBlack-tailed Rattlesnake

Black-tailed Rattlesnake

Crotalus molossus

CommonReptile & Amphibian
Illustration of Black-tailed Rattlesnake (Crotalus molossus)
Safety note: Venomous — keep distance

The Black-tailed Rattlesnake is named for its distinctive black tail. It inhabits rocky mountain slopes and canyon country from central Texas to Arizona. Less aggressive than the Western Diamondback, it is generally reluctant to rattle.

Habitat
Rocky mountain slopes, canyon walls, and desert scrub
Diet
Small rodents and lizards
How common
Common

Best time to see a Black-tailed Rattlesnake

The best time to see a Black-tailed Rattlesnake is June–August, when about 63% of U.S. sightings happen, based on 3,233 research-grade iNaturalist observations.

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Recent Black-tailed Rattlesnake sightings near you

Live, research-grade observations from iNaturalist. Allow location to center the map on you.

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