Featured Mammals


Lassen Volcanic National Park is home to approximately 57 species of mammals ranging is size from the tiny shrew to the North American black bear.

Meat-eaters | Carnivores

Carnivores are perhaps the most widely recognized group of mammals in Lassen Volcanic National Park. Although grizzly bears once roamed the area, they were extirpated from California when the last individual was shot in the early 1920s.

  • Gray fox, Urocyon cinereoargenteus
  • Sierra Nevada red fox, Vulpes vulpes necator
  • Coyote, Canis latrans lestes
  • Bobcat, Lynx rufus
  • Mountain lion/cougar, Puma concolor
  • Black bear, Ursus americanus
  • North American River Otter, Lontra canadensis
  • Striped skunk, Mephitis mephitis
  • Spotted skunk, Spilogale putorius
  • Long-tailed weasel, Mustela frenata
  • Short-tailed weasel, Mustela erminea muricus
  • American mink, Neovison vison
  • American marten, Martes americana sierrae
  • Fisher, Martes pennanti
  • Raccoon, Procyon lotor
  • American badger, Taxidea taxus neglecta

Hoofed Animals | Ungulates

The only ungulate in the park is the mule deer, Odocoileus hemionus.


The best known members of rodentia found in the park are mice, chipmunks, squirrels, and gophers. The order also includes lesser known taxa like voles. Mice (8 species) and their allies, chipmunks (3 species), and squirrels (6 species) constitute more than half of the rodent species in the park. Most of the remaining genera are represented by only a single species like marmots, aplodontia, and porcupines. The most commonly sighted rodents are:

  • Douglas's squirrel, Tamiasciurus douglasii
  • Townsend's chipmunk, Tamias townsendii
  • Yellow-pine chipmunk, Tamias amoenus amoenus
  • Allen's chipmunk, Tamias senex senex
  • Montane vole, Microtus montanus montanus
  • Golden-mantled ground squirrel, Callospermophilus lateralis
  • Western gray squirrel, Sciurus griseus
  • Mountain pocket gopher, Thomomys monticola
  • Deer mouse, Peromyscus maniculatus gambelii
  • Muskrat, Ondatra zibethicus

Shrews and Moles | Insectivores

Five species of shrew and two species of mole are founded throughout the park.

Hares and Rabbits | Lagomorphs

  • Snowshoe hare, Lepus americanus tahoensis
  • American pika, Ochonta princeps
  • Black-tailed jack rabbit, Lepus californicus
  • Mountain cottontail (Nuttall's cottontail), Sylvilagus nuttalli

Bats | Chiropterans

Millions of bats live in national parks. They pollinate, eat insects, use echolocation, and fascinate visitors. Learn more about the secret lives of bats on

The eight species of bat in Lassen Volcanic include:

  • Big brown bat, Eptesicus fuscus bernardinus
  • California myotis, Myotis californicus californicus
  • Fringed myotis, Myotis thysanodes
  • Hoary bat, Lasiurus cinereus
  • Little brown myotis, Myotis lucifugus carissima
  • Long-legged myotis, Myotis volans interior
  • Silver-haired bat, Lasionycteris noctivagans
  • Yuma myotis, Myotis yumanensis

Species of Concern

There are no Federally listed mammals within Lassen Volcanic National Park and the Sierra Nevada red fox is the only mammal species that is listed as Threatened by the State of California. The Sierra Nevada snowshoe hare, Sierra Nevada mountain beaver, and the American badger are all considered a species of concern by the State of California.


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Last updated: July 15, 2022

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