Olympic Marmot
Olympic MarmotOlympic MarmotOlympic MarmotOlympic Marmot

Olympic Marmot

Marmota olympus

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered Endemic
20–30% · Possible
overall probability at Olympic National Park
406 Verified records at Olympic National Park
July Best month highest sighting rate
☀️ Diurnal When it's active during daytime hours (6am–6pm)

The Olympic marmot (Marmota olympus) is a rodent in the squirrel family, Sciuridae. It occurs only in the U.S. state of Washington, at the middle elevations of the Olympic Peninsula. The closest relatives of this species are the hoary marmot and the Vancouver Island marmot. In 2009, it was declared the official endemic mammal of Washington state. This marmot is about the size of a domestic cat, typically weighing about 8 kg (18 lb) in summer. The species shows the greatest sexual dimorphism found in marmots, with adult males weighing on average 23% more than females. Wikipedia →

20–30% of wildlife watchers report a Olympic Marmot sighting in Olympic National Park, based on 406 days of visitor records from GBIF citizen-science data.

Closest Relatives at Olympic National Park

Douglas' Squirrel
LC Endemic

Douglas' Squirrel

☀️ Diurnal Mammal

Tamiasciurus douglasii

30–40% · Possible
Yellow-pine Chipmunk

Yellow-pine Chipmunk

☀️ Diurnal Mammal

Tamias amoenus

20–30% · Possible
Townsend's Chipmunk

Townsend's Chipmunk

☀️ Diurnal Mammal

Tamias townsendii

10–20% · With luck
American Red Squirrel
LC Endemic

American Red Squirrel

☀️ Diurnal Mammal

Tamiasciurus hudsonicus

5–10% · With luck
Eastern Gray Squirrel
LC

Eastern Gray Squirrel

☀️ Diurnal Mammal

Sciurus carolinensis

5–10% · Rare
Golden-mantled Ground Squirrel
LC

Golden-mantled Ground Squirrel

☀️ Diurnal Mammal

Callospermophilus lateralis

Insufficient data
American Beaver
LC

American Beaver

🌅 Crepuscular Mammal

Castor canadensis

<5% · Rare
Deer Mouse
LC

Deer Mouse

☀️ Diurnal Mammal

Peromyscus maniculatus

<5% · Rare
Townsend's Vole
LC Endemic

Townsend's Vole

☀️ Diurnal Mammal

Microtus townsendii

<5% · Rare
Pacific Jumping Mouse
LC

Pacific Jumping Mouse

☀️ Diurnal Mammal

Zapus trinotatus

<5% · Rare
Mountain Beaver
LC Endemic

Mountain Beaver

☀️ Diurnal Mammal

Aplodontia rufa

<5% · Rare
Bushy-tailed Wood Rat
LC

Bushy-tailed Wood Rat

☀️🌙 Day & Night Mammal

Neotoma cinerea

Insufficient data

📅 Monthly Probability

<5
Jan
<5
Feb
<5
Mar
<5
Apr
20–30
May
30–40
Jun
40–50
Jul
30–40
Aug
20–30
Sep
<5
Oct
<5
Nov
<5
Dec

☀️ When They're Spotted

Most active during daytime hours (6am–6pm) · across all parks (global)

☀️Diurnal
☀️🌙🌙12am6am12pm6pm12am

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
20–30%

More parks will be added in future updates.

Quick answers

What are the chances of seeing a Olympic Marmot in Olympic National Park?

About 28% of wildlife watchers report a Olympic Marmot sighting in Olympic National Park, based on 406 days of visitor records from GBIF citizen-science data.

When is the best time to see Olympic Marmot in Olympic National Park?

July has the highest sighting rate for Olympic Marmot in Olympic National Park in our monthly data.

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