Reptiles of Pinnacles National Park

Striped Racer (California Whipsnake) eating Western Fence Lizard

Photo by Gavin Emmons

Lizards, Snakes, and More: Reptile Life at Pinnacles

Pinnacles National Park boasts a rich diversity of reptiles, with eight lizard species, fourteen snake species, and one turtle species. This variety is significant compared to other areas of Central California. Some of the most commonly encountered reptiles include the western whiptail, coast horned lizard, western fence lizard, common garter snake, striped racer, gopher snake, and western rattlesnake.

Seasonal Activity of Reptiles

• Cool, Wet Months: Species like the sharp-tailed snake are most active during this time.
• Warming Period (April - May): Reptiles such as Gilbert’s skink and the alligator lizard emerge as temperatures rise.
• Hottest Days: The striped racer and western whiptail are typically active during peak heat.
• Year-Round Presence: The western fence lizard and side-blotched lizard can be seen throughout most of the year, except during the hottest and coldest weeks.

Some reptiles are more elusive, such as the western pond turtle, which is uncommon and difficult to spot. The desert night lizard is another rare sight, often spending its entire life in a single decaying log. Occasionally, it may be seen at night near the porch light at the Bear Gulch Nature Center, emerging from cracks in the building to catch insects attracted to the light.

Guidelines for Observing Reptiles

While it may be tempting to capture reptiles for a closer look, this is prohibited at Pinnacles. Using binoculars is a great way to observe them in their natural behavior, avoiding the risks of being bitten, defecated on, or encountering a tail-drop defense mechanism.

Turning over rocks and logs is also prohibited, as even careful handling disturbs habitats. With 200,000 visitors a year, even one person in a thousand overturning rocks would lead to frequent disturbances, causing reptiles to move farther away from trails. This behavior could make sightings less likely and disrupt the reptiles’ habitats.

Instead, take the time to observe reptiles in their natural, open environments, where many species that usually hide under rocks and logs can be seen if you are patient.

For more details, see the Checklist of Reptiles and Amphibians of Pinnacles National Park