Southern Pacific Rattlesnake — Santa Clarita's only rattlesnake species

Caught at a Homeowner's Property in Santa Clarita

Southern Pacific Rattlesnake

Santa Clarita Valley

How Many Rattlesnakes? A Modeled Estimate

~0.1–0.3 snakes/acre × ~300,000 acres of habitat → roughly 30,000–90,000 · a range, not a census
Methodology & Sources Hide Methodology & Sources

No census of rattlesnakes exists for the valley — snakes are notoriously hard to count. This estimate applies measured field densities for Crotalus oreganus (radio-telemetry studies report on the order of ~0.2 snakes per acre) to roughly 300,000 acres of undeveloped SCV habitat, producing a wide modeled range of about 30,000–90,000.

What we don't claim: we make no assertion about whether the population is rising or falling over time — no dataset supports a year-over-year trend. An earlier version of this page applied a higher density and showed a growth curve; we've since corrected that. The honest takeaway is abundance: a large, dense population across the valley's open space.

Sources: Crotalus oreganus field telemetry density data · CDFW · L.A. County Dept. of Regional Planning (habitat acreage)

Santa Clarita's Only Rattlesnake

Southern Pacific Rattlesnake

The Southern Pacific Rattlesnake is the most dangerous snake in Santa Clarita and one of the most dangerous in North America.

Key identifiers include a triangular head, heat-sensing pit organs between the eye and nostril, vertical elliptical pupils, and keeled scales that give the body a rough, matte texture.

Not every snake you encounter is dangerous — but misidentification causes panic and unnecessary risk.

  • —Pictured is a young adult
  • —They tend to darken with age to nearly black
  • —Babies are born with a single button and cannot rattle until first shed
  • —Mothers give live birth to up to a dozen rattlesnakes
Free Snake Removal & Identification → Envenomation Guide →
Southern Pacific Rattlesnake Identification Guide
Rattlesnake avoidance training — The Snake School
Rattlesnake Population

Rattlesnakes Are All Around This Valley.

There's no census of rattlesnakes in the Santa Clarita Valley, so we model the population from measured field densities — landing on a wide estimate of roughly 30,000–90,000. We don't claim to know whether that number is rising or falling; no data supports a trend. What is certain is abundance: the valley's neighborhoods and trails sit directly against active habitat, and rattlesnakes turn up in local yards, garages, and on paths every year.

"You don't need an exact count to know the risk is real. In this valley, rattlesnakes live right up against where people walk their dogs — that's what matters."

30–90K
Est. Modeled Population (Range)
~0.1–0.3
Snakes / Acre (Measured)
300,000
Acres of Active Habitat
520 mi²
Study Area

"Across the Santa Clarita Valley, professional removal services relocate rattlesnakes from homes, yards, and trails every year — with calls spiking in warm, dry seasons. The risk here isn't theoretical."

— SCV snake-removal reporting; LA Times / Cal Poly SLO relocator accounts
Read the Full Population Report →
Containment Units
How We Keep Every Dog Safe
Secure Caged Containment

Every rattlesnake is kept inside a secure, purpose-built cage with ventilation that lets the dog see, smell, and hear the snake — while making it physically impossible for a fang to reach through. The dog never has direct access to the snake.

Non-Negotiable Standard

Every rattlesnake used in our training is secured inside a containment unit at all times. Your dog never has direct access to the snake — and that is non-negotiable. Not a preference. A standard.

No Muzzled Snakes — Ever

We stand firmly against the muzzling of rattlesnakes. Muzzling changes their behavior and makes them docile — defeating the purpose. Our containment method produces better results and keeps everyone safer.
Why We Never Use Muzzled Snakes

With contained snakes, we achieve the same results — if not better. Muzzling rattlesnakes drastically changes their behavior, and can even make them docile — which defeats the purpose entirely. A dog approaching a naturally behaving rattlesnake inside a containment unit is exactly the real-world scenario we're training for. The experience is authentic. The safety is absolute.

We've seen what muzzled rattlesnakes can do. Handlers using muzzled snakes don't just get bitten — they get bitten often. We've personally witnessed muzzling jobs where it was genuinely questionable whether a fang could pop free. Rattlesnakes will do anything they are physically capable of to bite when they decide to. Their fangs sit on hinges in their mouths, and it has been documented that they will angle their fangs to pierce through the bottom of their own mouths to reach you. A muzzled rattlesnake is not a safe rattlesnake.
Rattlesnake avoidance training — The Snake School in association with Cary Quashen Rattlesnake Wrangling

In Association With

Cary Quashen Rattlesnake Wrangling

As a community service to Santa Clarita homeowners, we have safely removed and relocated over 1,000 rattlesnakes from people's homes across the Santa Clarita Valley — and well over 120 this year alone.

Every snake is handled safely and relocated — never killed. This is the same expertise and respect for rattlesnakes that we bring to every training day.

Cary Quashen Rattlesnake Wrangling →
Professional Snake Handling

The Handlers Behind the Snakes

Safe rattlesnake avoidance training requires more than a skilled dog trainer — it requires experienced professionals who handle live rattlesnakes with expertise and care. Meet the team who make our training sessions possible.

Cary Quashen — rattlesnake wrangler and Snake School handler
Rattlesnake Handler / Dog Handler / Santa Clarita's Go-To Snake Removal Expert
Cary Quashen

Cary is a well-known Santa Clarita Valley community leader, business owner, addiction expert, and the face of The Snake School's rattlesnake wrangling operation. With over 40 years of rattlesnake handling experience — a fascination that started when he was a little kid — and 40 years working with dogs, Cary brings decades of fluency with both species to every training day. A passionate advocate for wildlife safety and co-existence, he has made it his mission to educate families and pet owners about living safely alongside rattlesnakes in Southern California. When a rattlesnake shows up where it's not welcome, Cary is the one people call — and he handles every encounter with calm, respect for the animal, and a deep commitment to public safety.

Live Rattlesnake Handler Dog Handler Wildlife Safety Advocate Bird Watcher Santa Clarita, CA
Scott Quashen — The Snake School founder with a rattlesnake
Rattlesnake Handler / Dog Handler / Owner
Scott Quashen

Scott started The Snake School for Dogs™ to build the rattlesnake avoidance program he wanted to put his own dog through — one where safety, training quality, and care for the animals are all uncompromising. He has 5 years of experience handling venomous snakes alongside his father Cary on the wrangling team, plus many years working with dogs — and he runs every training day to keep it smooth, safe, and high-standard for the dogs and the snakes. Before starting The Snake School, Scott learned hands-on as part of a 2-person team across hundreds of rattlesnake avoidance training sessions. Additionally, Scott holds a Bachelor of Science degree from California State University. After consulting with expert herpetologists on the matter of muzzled rattlesnakes, Scott will never handle another live muzzled rattlesnake again.

Live Rattlesnake Handler Dog Handler Safety Officer Santa Clarita, CA
Why Train Your Dog

The Reality of Santa Clarita.

Rattlesnakes aren't a "maybe" in this valley — they're a near-certainty. The numbers below are why we built this course.

01 · Population
30–90K

Rattlesnakes modeled across the Santa Clarita Valley — a wide estimate from measured field densities and undeveloped acreage, presented as our estimate, not a census.

02 · National Bites
150,000

Dogs bitten by rattlesnakes every year in the United States — one of the most common venomous wildlife encounters in North America.

03 · Local Encounters
1,000+

Rattlesnakes removed from homes and yards around Santa Clarita by local relocation services — encounters here are routine, and spike in warm, dry years.

Sources: Crotalus oreganus field telemetry density data · CDFW · L.A. County Dept. of Regional Planning · WSU Veterinary Teaching Hospital (U.S. bite count)

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Critical Warning — Santa Clarita Transition Zone

Santa Clarita sits in the transition zone between the California coast and the Mojave Desert. Most Southern Pacific Rattlesnakes here carry the standard hemotoxic venom (destroys tissue and disrupts clotting) — but published research documents nearby populations with neurotoxic components (attack the nervous system, can cause respiratory failure), and in rarer cases a bite can carry both. Because neurotoxic venom often produces far less swelling, a serious bite can look deceptively mild.

If your dog is bitten, this is a medical emergency. Highly neurotoxic venom causes far less swelling than typical rattlesnake venom — your dog may appear fine but is in critical danger. Do not wait for symptoms to worsen. Rush your dog to an animal hospital immediately for anti-venom treatment.

Less swelling does not mean less dangerous. With neurotoxic venom, the opposite is true.

Ready to Protect Your Dog

One Session. Lasting Protection.

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