Washington mammals

Montane Shrew in Washington

Sorex monticolus

Native to Washington

Not listed as nonindigenous in Washington by USGS NAS; treated as native to its mapped Washington range.

IUCN Red List status

  1. LC
  2. NT
  3. VU
  4. EN
  5. CR
  6. EW
  7. EX

LC – Least Concern

Widespread and abundant; not at risk.

AI-generated image: Montane Shrew in side profile on mossy forest floor. No public-domain photograph of this species exists. This image was generated with AI from verified reference material and reviewed by our editorial team for accuracyAI-generated image: Montane Shrew beside wet log in mossy conifer litter. No public-domain photograph of this species exists. This image was generated with AI from verified reference material and reviewed by our editorial team for accuracy
AI-generated image No public-domain photograph of this species exists. This image was generated with AI from verified reference material and reviewed by our editorial team for accuracyMontane Shrew in side profile on mossy forest floorAI-generated image No public-domain photograph of this species exists. This image was generated with AI from verified reference material and reviewed by our editorial team for accuracyMontane Shrew beside wet log in mossy conifer litter

Montane Shrew in Washington, by the numbers

Common in Washington 9th most recorded of 145 mammals logged in Washington

2,981 occurrence records

Records from 2000–2026.

2,981 total records count every Washington occurrence from GBIF and iNaturalist; the map plots a georeferenced sample of 300; the monthly chart covers the 2,976 records with a full observation date.

When to look for the Montane Shrew in Washington

Most sightings fall in July to August.

2,976 Washington occurrence records (iNaturalist and GBIF) by month of year, 2000–2026. Shows when the species is recorded, not a guarantee of presence.

Monthly Washington records (table)
MonthRecords
January13
February10
March33
April42
May283
June382
July843
August800
September274
October219
November68
December9

Monthly montane shrew occurrence records (iNaturalist and GBIF) in Washington, 2000–2026.

Seasonality

Year-round in Washington, with recorded sightings peaking in July–August.

Occurrence map

Where Montane Shrew has been recorded in Washington

300 records mapped · zoom and drag to explore

300 Washington records mapped

Notable places to look

Park, forest, or monumentiNaturalist records
Mount Rainier National Park 172
Washington State Department of Natural Resources (WADNR) State Resource Management Area 125
Ross Lake National Recreation Area 103
Daniel J. Evans Wilderness Area 32
Trapper Creek Wilderness 24
Lake Chelan National Recreation Area 20
Colville National Forest 20
North Cascades National Park 20

Protected places with the most montane shrew sightings, from the USGS Protected Areas Database plus named mountain ranges, good spots to look, not a full breakdown, so they don't sum to the total.

Where it's recorded in Washington

CountyRecords
Clallam County 600
Thurston County 285
Skamania County 271
Pacific County 241
Pierce County 239
Pend Oreille County 217
Lewis County 189
Grays Harbor County 154
Whatcom County 153
Jefferson County 141
Stevens County 127
King County 110
15 other counties 254

The complete county distribution, spread across 27 Washington counties. Every occurrence record falls in one county, so these sum to the total. Counties from GBIF and US Census boundaries.

In this state overlay, montane shrew appears in 2,981 occurrence records. All come from GBIF; there are no iNaturalist records in the overlay.

The strongest month is July (843 records), whereas the quietest is December (9). Suggested locations span Olympic National Park and Dungeness National Wildlife Refuge, but no site-level counts compare them. These numbers locate and date records, but do not estimate how many animals Washington holds.

AI-generated image: Montane Shrew in side profile on mossy forest floor. No public-domain photograph of this species exists. This image was generated with AI from verified reference material and reviewed by our editorial team for accuracy
Full species profile Montane Shrew Sorex monticolus Size 6.8 cm2.7 in Weight 6 g0.2 oz Lifespan Up to 2.1 yr View the full profile

More mammals in Washington in the atlas

Data & sources

The data and visualizations on this page draw on these open sources:

  • GBIFCC-BY 4.0occurrence records behind the range map, elevation, and record counts
  • iNaturalistCC0 / CC-BY / CC-BY-SAobservations, photos, and audio recordings
  • IUCN Red Listattributed factthe global conservation status
  • USGS NASpublic domainnative / introduced status
  • Natural Earthpublic domainthe relief basemap
  • USFSpublic domainnational-forest boundaries
  • USGS Protected Areas Databasepublic domainthe named parks, forests, and refuges behind "notable places to look"