Classification
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All Names

  • English
    • Southern Pacific Rattlesnake
  • Scientific Names
    • Crotalus oreganus helleri
    • Crotalus helleri
    • Crotalus viridis helleri

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Recent observations

Photos / Sounds

What

southern pacific rattlesnake Crotalus oreganus ssp. helleri

Observer

rdm24

Date

May 7, 2008

Description

A baby, right by the green valley falls trail.

Photos / Sounds

What

southern pacific rattlesnake Crotalus oreganus ssp. helleri

Observer

rdm24

Date

April 4, 2009

Photos / Sounds

What

Southern Pacific Rattlesnake Crotalus oreganus ssp. helleri

Observer

glhans

Date

August 23, 2014 10:55 AM PDT

Description

Big daddy!

Photos / Sounds

Square

What

southern pacific rattlesnake Crotalus oreganus ssp. helleri

Observer

lgordon

Date

May 8, 2011

Description

SWHS find

Photos / Sounds

Square

What

southern pacific rattlesnake Crotalus oreganus ssp. helleri

Observer

lgordon

Date

March 7, 2011

Description

@10am
Open field on rt. after point where road crosses creek, after lower parking lot.

Greg- can you assist with location? First herp trip with you and bobby

Photos / Sounds

Square

What

Southern Pacific Rattlesnake Crotalus oreganus ssp. helleri

Date

August 14, 2014

Place

(Somewhere...)

Photos / Sounds

Square

What

Southern Pacific Rattlesnake Crotalus oreganus ssp. helleri

Observer

chaparral

Date

August 13, 2014 11:24 AM PDT

Photos / Sounds

What

Southern Pacific Rattlesnake Crotalus oreganus ssp. helleri

Observer

nhm_nature

Date

May 22, 2010

Description

"Spunky Canyon Road, Angeles Forest near Bouquet Reservoir " - Clare MK

Observation and photos by Clare MK, sent to rascals@nhm.org.

Photos / Sounds

What

Southern Pacific Rattlesnake Crotalus oreganus ssp. helleri

Observer

ariggle

Date

August 1, 2014

Photos / Sounds

Square

What

Southern Pacific Rattlesnake Crotalus oreganus ssp. helleri

Date

August 1, 2014

Place

(Somewhere...)

Photos / Sounds

Square

What

Southern Pacific Rattlesnake Crotalus oreganus ssp. helleri

Date

July 30, 2014

Place

(Somewhere...)

Photos / Sounds

What

Southern Pacific Rattlesnake Crotalus oreganus ssp. helleri

Observer

nhm_nature

Date

April 14, 2014

Description

"This rattlesnake was on the Switzer Trail, a couple of hundred yards before the falls, in the Angeles Forest on April 14, 2014.
He was close to the stream and would likely have taken a drink, but our presence changed his course and he took cover.
We waited patiently, but he would not emerge for a photo of his head." - Clare MK

Observation and photos by Clare MK.

View all observations

Description from Wikipedia

Crotalus oreganus helleri is a venomous pitviper subspecies found in southwestern California and south into Baja California, Mexico.

No range data available.