Mountain Beaver
Aplodontia rufa
- KingdomAnimalia (Animals)
- PhylumChordata (Cordats)
- ClassMammalia (Mamífers)
- OrderRodentia (Rosegadors)
- FamilyAplodontiidae (Mountain Beavers)
- GenusAplodontia
- SpeciesAplodontia rufa (Mountain Beaver)
Closest Relatives at Olympic National Park
Douglas' Squirrel
Tamiasciurus douglasii
Olympic Marmot
Marmota olympus
Tamia améne
Tamias amoenus
Townsend's Chipmunk
Tamias townsendii
American Red Squirrel
Tamiasciurus hudsonicus
Eastern Gray Squirrel
Sciurus carolinensis
American Beaver
Castor canadensis
Deer Mouse
Peromyscus maniculatus
Townsend's Vole
Microtus townsendii
Pacific Jumping Mouse
Zapus trinotatus
Bushy-tailed Wood Rat
Neotoma cinerea
Muskrat
Ondatra zibethicus
📅 Monthly Probability
☀️ When They're Spotted
Most active during daytime hours (6am–6pm) · across all parks (global)
Global Distribution
Where this species is recorded worldwide. Restricted to human observations from 2019 onwards — the same kind of record and the same period the probabilities on this page are built from, so collar-tracking studies, camera-trap arrays and museum specimens are excluded. Around Santa Rosa that removes 5,924 GPS fixes from a handful of tagged jaguars.
where this species is recorded (GBIF density — it tracks where observers go, not how likely a sighting is) · parks where it occurs — tap a pin for the sighting probability there
Parks Where Found
| # | Park | Country | Probability |
|---|---|---|---|
| 1 | Olympic National Park | 🇺🇸 United States | |
| 2 | Redwood National Park | 🇺🇸 United States | |
| 3 | Yosemite National Park | 🇺🇸 United States |
Quick answers
What are the chances of seeing a Mountain Beaver in Olympic National Park?
About 3% of visitor-days record a Mountain Beaver sighting in Olympic National Park, based on 16 observer-days of citizen-science data from GBIF.
When is the best time to see Mountain Beaver in Olympic National Park?
August has the highest sighting rate for Mountain Beaver in Olympic National Park in our monthly data.