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

Square

What

Southern Pacific Rattlesnake Crotalus oreganus ssp. helleri

Observer

cdegroof

Date

July 24, 2016 10:07 AM PDT

Place

(Somewhere...)

Photos / Sounds

Square

What

Southern Pacific Rattlesnake Crotalus oreganus ssp. helleri

Observer

gavitp

Date

July 24, 2016 07:00 AM PDT

Description

On shoulder of road, unresponsive, suspected road kill

Photos / Sounds

Square

What

Southern Pacific Rattlesnake Crotalus oreganus ssp. helleri

Date

July 22, 2016 09:40 AM PDT

Place

(Somewhere...)

Description

Strange to have a neo this time of year.

Photos / Sounds

Square

What

Southern Pacific Rattlesnake Crotalus oreganus ssp. helleri

Observer

bryntc

Date

June 11, 2016 10:04 AM PDT

Photos / Sounds

Square

What

Southern Pacific Rattlesnake Crotalus oreganus ssp. helleri

Observer

staceytracks

Date

March 15, 2013 02:59 PM PDT

Description

Observed off the Big Rock trail on Cowles Mtn It was about 18 long inches with a button on its tail.

Photos / Sounds

Square

What

Southern Pacific Rattlesnake Crotalus oreganus ssp. helleri

Observer

brendan6

Date

April 3, 2016 03:14 PM PDT

Photos / Sounds

What

Southern Pacific Rattlesnake Crotalus oreganus ssp. helleri

Observer

staceytracks

Date

March 30, 2012 02:26 PM PDT

Description

Found in disturbed area adjacent to Mission Trails Regional Park and the San Diego River.

Photos / Sounds

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What

Southern Pacific Rattlesnake Crotalus oreganus ssp. helleri

Observer

donendicott

Date

July 19, 2016 09:04 AM PDT

Description

Juvenile spotted during monthly herpetofauna survey at Carrillo National Monument. Estimated length 12-15 inches.

Photos / Sounds

What

Southern Pacific Rattlesnake Crotalus oreganus ssp. helleri

Observer

kcollier

Date

January 22, 2016 12:10 PM PST

Photos / Sounds

Square

What

Southern Pacific Rattlesnake Crotalus oreganus ssp. helleri

Observer

kclarksdnhmorg

Date

July 16, 2016 09:26 AM HST

Photos / Sounds

Square

What

Southern Pacific Rattlesnake Crotalus oreganus ssp. helleri

Date

July 16, 2016 03:58 PM PDT

Place

(Somewhere...)

Photos / Sounds

Square

What

Southern Pacific Rattlesnake Crotalus oreganus ssp. helleri

Date

July 13, 2016 11:09 AM PDT

Place

(Somewhere...)
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.
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