Mohave Rattlesnake

Mohave Rattlesnake

Crotalus scutulatus

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered
Daily sighting probability ~10% · With luck
at Saguaro National Park
33 Verified sightings at Saguaro National Park From 2019 to 2026
91 Verified sightings across all 5 parks From 2019 to 2026
August Best month highest sighting rate
☀️🌙 Day & Night When it's spotted Active throughout day and night

About the Mohave Rattlesnake

Crotalus scutulatus is species of rattlesnake, a venomous pit viper in the family Viperidae. The species is known commonly as the Mohave Rattlesnake. Other common English names include Mojave Rattlesnake and, referring specifically to the nominate (northern) subspecies: Northern Mohave Rattlesnake and Mojave Green Rattlesnake, the latter name commonly shortened to the more colloquial "Mojave green". Campbell and Lamar (2004) supported the English name "Mohave (Mojave) rattlesnake" with some reluctance because so little of the snake's range lies within the Mojave Desert. The spelling of the English name with an "h" has been advocated by multiple authors in recent years for various reasons. The most recent iteration of standard English names for North American reptiles, endorsed by the major herpetological societies in the United States and Canada, concludes that spelling with either a "j" or an "h" is correct, based on "whether the word is used in a Spanish or English context." Thus, their standard English names list adopted the "h" spelling.

Crotalus scutulatus is a highly venomous pitviper (family Viperidae, subfamily Crotalinae) found in the deserts of the southwestern United States and deep into mainland Mexico. It is perhaps best known for producing two distinctly different venom types in different populations.

Two subspecies are currently recognized. This account describes the widely distributed nominate subspecies, the Northern Mohave Rattlesnake, Crotalus scutulatus scutulatus. The other subspecies, C. scutulatus salvini, occurs in a relatively small area deep in mainland Mexico. Wikipedia →

Global Distribution

Where this species is recorded worldwide. Restricted to human observations from 2019 onwards — the same kind of record and the same period the probabilities on this page are built from, so collar-tracking studies, camera-trap arrays and museum specimens are excluded. Around Santa Rosa that removes 5,924 GPS fixes from a handful of tagged jaguars.

where this species is recorded (GBIF density — it tracks where observers go, not how likely a sighting is)  ·  parks where it occurs — tap a pin for the sighting probability there

Parks Where Found

# Park Country Daily sighting probability
1 Big Bend National Park 🇺🇸 United States
~10%
2 Death Valley National Park 🇺🇸 United States
~10%
3 Saguaro National Park 🇺🇸 United States
~10%
4 Joshua Tree National Park 🇺🇸 United States
~10%
5 Grand Canyon National Park 🇺🇸 United States
Insufficient data

Quick answers

What are the chances of seeing a Mohave Rattlesnake in Saguaro National Park?

About 10% of wildlife watchers report a Mohave Rattlesnake sighting in Saguaro National Park, based on 33 verified sightings from GBIF citizen-science data.

When is the best time to see Mohave Rattlesnake in Saguaro National Park?

August has the highest sighting rate for Mohave Rattlesnake in Saguaro National Park in our monthly data.

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