Snakes in Alaska: identification guide and best places to start

Where are people most likely to notice snakes in Alaska?

You are most likely to notice a snake in Alaska around warm microclimates. Check group gardens, greenhouses, or hot springs resort areas like Chena Hot Springs. Garter snakes have been introduced in a few spots near Anchorage and Fairbanks. Start with these small, isolated patches rather than searching the wilderness.

See our state wildlife page for the next step.

What season or weather patterns help spot snakes?

Snakes in Alaska are only active during the warmest part of summer, typically July and August when daytime temperatures reach the 70s Fahrenheit. They need direct sun to warm up. Look on south-facing slopes or rocky areas after a few days of clear weather. Cool, rainy days mean zero chance of a sighting.

How to identify snakes in Alaska vs lookalikes?

The only snake you might see is a common garter snake (Thamnophis sirtalis), recognizable by a striped body and dark tongue. They top out at 18 inches. Lookalikes include the slow worm (a legless lizard) and even large earthworms. Garter snakes have small scales and a distinct head, while legless lizards have eyelids and ear openings. If in doubt, check the eyes and the ability to blink: snakes cannot blink, lizards can.

See our state animal guide for the next step.

What should you do if you think you see a snake in Alaska?

Take a photo from a safe distance and note the location. Report the sighting to the Alaska Department of Fish and Game. Do not handle the animal; even non-venomous snakes can bite. The photo helps experts confirm identification and track introduced populations. This is a valuable citizen science opportunity.

Are there any popular trails or wetlands where snakes have been reported?

Most reported sightings come from the Anchorage Coastal Wildlife Refuge trails and the gardens near the University of Alaska Fairbanks. A few have been seen around the Seward Highway corridor near Turnagain Arm. These areas have sunny, disturbed soils that can hold heat. I can trace reports back to the late 1990s in these same spots.