• An aerial view of Old Faithful erupting taken from Observation Point with the Old Faithful Inn to the side.

    Yellowstone

    National Park ID,MT,WY

Wandering garter snake

Scientific name: Thamnophis elegans vagrans

Identification

  • Most common reptile in the park.
  • 6 to 30 inches long.
  • Brown, brownish green, or gray with three light stripes: one running the length of the back and a stripe on each side.
Habitat

  • Usually found near water in all areas of the park.
  • Eats small rodents, fish, frogs, tadpoles, salamanders, earthworms, slugs, snails, and leeches.
Behavior

  • May discharge musk from glands at the base of the tale when threatened.
  • Gives birth to as many as 20 live young in late summer or fall.

Did You Know?

Upper Geyser Basin Hydrothermal Features on a Winter Day.

Yellowstone contains approximately one-half of the world’s hydrothermal features. There are over 10,000 hydrothermal features, including over 300 geysers, in the park.