How to identify it
Slightly greenish tinge to the body, which gives 'Mojave green'; the western rattlesnake lacks the greenish tinge (NPS Parashant). [1][2][3]
Tail bands have thick white bands and narrower black bands; the western diamondback's bands are more uniform in width (NPS Saguaro). [1][2][3]
Averages 2-4 ft in length (NPS Parashant). [1][2][3]
Newborns have a single silent button rather than a full rattle (NPS Parashant). [1][2][3]
Compared with the western diamond-backed rattlesnake: Tail bands are more uniform in width and the body lacks the Mohave's greenish tinge (NPS Saguaro; NPS Parashant). [1][2][3]
Compared with the western rattlesnake: Lacks the Mohave's greenish tinge (NPS Parashant). [1][2][3]
Species it is confused with
Check these before deciding what you are looking at. If you are not certain what it is, do not shoot.
- Western diamond-backed rattlesnake · Crotalus atrox
- Western rattlesnake · Crotalus oreganus
Where it lives
Mostly upland desert and lower mountain slopes: barren desert, grassland, open woodland and scrub with creosotebush, palo verde, mesquite or cacti; usually not in broken rocky terrain or dense vegetation (NatureServe). [1][2][3]
How it behaves
At lower elevations mainly nocturnal in summer and commonly active in morning and late afternoon in spring and fall; may be active by day in summer at higher elevations (NatureServe). [1][2][3]
Above ground March-November, probably most active late April or May through September (NatureServe). [1][2][3]
Eats kangaroo rats, ground squirrels, mice, rabbits and other small mammals; lizards are eaten especially by the young (NatureServe). [1][2][3]
Uses rodent burrows to overwinter; hibernates alone or in groups of two or three (NPS Parashant; NPS Saguaro). [1][2][3]
Limited legal take
Legal take of this species exists only under narrow conditions — a quota, a draw, a permit, a small area, or animals released or held on private land — set by the authorities below. Nowhere else is a legal opportunity implied, and Hunt shows one only where a certified rule establishes it.
Where legal take is listed
- California — reptile take · 2026 California Freshwater Sport Fishing Regulations (updated July 10, 2026), 14 CCR 5.05/5.60
- Nevada — reptile take · CR 24-15 2025 & 2026 Seasons & Limits for Noncommercial Collection of Live, Unprotected Reptiles & Amphibians
- Utah — other regulated take, reptile take · Reptile and amphibian species classification tables (R657-53), updated Apr. 22, 2026
Being listed is not an open season. Seasons, zones, licences, methods and limits decide whether this animal may be taken on a given day and place — check Hunt or the authority before you go. Listings read 2026-09-30.
Where it is found
Southern California, southern Nevada and southwestern Utah south through Arizona, southern New Mexico and western Texas into central Mexico; sea level to about 2,530 m (NatureServe).
Sources
Every claim above is attributed to one of these published sources.
NatureServe · reviewed 2026-09-30
NatureServe
National Park Service · reviewed 2026-09-30
National Park Service
- BIOLOGICALSnakes - Saguaro National Park
National Park Service · reviewed 2026-09-30
National Park Service
