• 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

Rubber boa

A close-up view of a Rubber boa's head on a rock.
Rubber boa
NPS
 
Scientific name: Charina bottae

Identification

  • Infrequently encountered in Yellowstone, perhaps due to its nocturnal and burrowing habits.
  • One of two species of snakes in the United States related to tropical boa constrictors and pythons.
  • Maximum length of 24 inches.
  • Back is gray or greenish-brown, belly is lemon yellow; scales are small and smooth, making it almost velvety to the touch.
Habitat and Behavior

  • Eats rodents.
  • May spend a great deal of time partially buried under leaves and soil, and in rodent burrows.
  • Usually found in rocky areas near streams or rivers, with shrubs or trees nearby.
  • Recent sightings have occurred in the Bechler region and Gibbon Meadows.

Did You Know?

Lake Trout Illustration

Lake trout are an invasive species of fish that is decimating the native cutthroat trout population in Yellowstone Lake.