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SHOWING RECORD: 9 of 47   Western Rattlesnake
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image: Western Rattlesnake
Illustration by Gerald Rapp & Cullen Inc./Laszlo Kubinyi
Western Rattlesnake
(Northern Pacific Rattlesnake)

Crotalus viridis oreganus

Subspecies of Rattlesnake



First Noted by Expedition
April 25, 1806, near present-day Roosevelt, Klickitat County, Washington.
 

Description
Size and color vary greatly. Brownish blotches down midline of back, generally edged with dark brown or black and often surrounded by light border. Length: 1.3-5.3 ft (0.4-1.6 m).
 

Habitat
Brush-covered sand dunes on Pacific coast to timberline in the Rockies and the coniferous forests of the Northwest; rocky outcrops, talus slopes, and stony canyons; sea level to 11,000 ft (3,350 m).
 

Range
South-central British Columbia south through Washington, Oregon, and Idaho to Baja California, western Colorado, southwestern Arizona, and extreme west-central New Mexico.
 

Note
The western and prairie rattlesnakes were once considered a single species, C. viridis, called the western rattlesnake.

Species information from enature.com
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