I saw an Arizona Black Rattlesnake on the Woodchute Trail, an 8.5 mile moderately trafficked out and back trail located near Jerome, Arizona. This snake is endemic to the central mountains of the state from below the Colorado River in northwestern Arizona, along and below the Mogollon Rim, through the White Mountains, and down into the Santa Catalina and Rincons. It is found at elevations ranging from about 4,000 to 9,000 feet. Most individuals of this species are relatively docile compared to other rattlesnakes in Arizona. However, the venom is 2 to 2.5 times the toxicity of the Western Diamond-backed Rattlesnake (Lowe et al. 1986, Rubio 2010).
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