Viperidae

Rock Rattlesnake

Crotalus lepidus

Venomous
Rock Rattlesnake
(c) Mauricio Calderón, some rights reserved (CC BY) · CC BY 4.0 · Image source ↗Displayed copies may be resized; the full image is preserved.

A closer look

Small and highly camouflaged; Texas has mottled and banded forms. It is most often associated with rocky mountains and canyons and typically feeds on lizards and rodents.

Habitat
Rocky mountains & canyons
On the menu
Lizards and rodents
Behavior
A sit-and-wait hunter that relies on camouflage, heat-sensing pits, and a rapid strike.
Danger level: medical emergency

A suspected bite needs emergency medical care. Do not wait for symptoms or use this guide to judge severity.

Safety & bite guidance ↗
Watch this snake & listen to its story ↗

Where it is listed

A sense of place.

3 jurisdictions
Rock Rattlesnake: jurisdiction presenceHighlighted jurisdictions: Arizona, New Mexico, Texas. This map shows checklist presence, not local occurrence.ALASKAHAWAIITERRITORIESPR · VIGU · AS · MP
Source-listedProvisionalNo record in this snapshot

Checklist presence only. A highlighted state is not a local range boundary. Territory tiles are schematic.

State & territory checklist

About continuous range data

A verified habitat-model layer is not available for this species in this release. Earlier broad sketches connected jurisdiction locations; they did not show measured occurrence or USGS habitat predictions.

Use USGS distribution resources ↗ for available modeled habitat data.