Nevada mammals

Montane Shrew in Nevada

Sorex monticolus

Native to Nevada S3 Vulnerable in Nevada

Not listed as nonindigenous in Nevada by USGS NAS; native to its Nevada 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.

Montane Shrew in Nevada, by the numbers

Common in Nevada 39th most recorded of 142 mammals logged in Nevada

185 occurrence records

Records from 2000–2026.

185 total records count every Nevada occurrence from GBIF and iNaturalist; the map plots a georeferenced sample of 183; the monthly chart covers the 172 records with a full observation date.

When to look for the Montane Shrew in Nevada

Most sightings fall in July.

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

Monthly Nevada records (table)
MonthRecords
January0
February0
March0
April3
May11
June16
July85
August43
September4
October10
November0
December0

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

Seasonality

Year-round in Nevada, with recorded sightings peaking in July.

Occurrence map

Where Montane Shrew has been recorded in Nevada

183 records mapped · zoom and drag to explore

183 Nevada records mapped

Notable places to look

Park, forest, or monumentiNaturalist records
Ruby Mountains Wilderness 15
Pine Forest Range Wilderness Area 12
Toiyabe National Forest 4
High Schells Wilderness 2
Humboldt National Forest 2

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 Nevada

CountyRecords
Elko County 110
Humboldt County 34
Mineral County 19
White Pine County 10
Washoe County 6
Carson City County 4
Other localities 2

The complete county distribution, spread across 6 Nevada counties. Every occurrence record falls in one county, so these sum to the total. Counties from GBIF and US Census boundaries.

Nevada records for the montane shrew are anchored by Stillwater National Wildlife Refuge and Ruby Lake National Wildlife Refuge. They show where people have reported it, not how many animals live there.

The Nevada records stretch from southern desert country toward the state’s northern basins. They show a wider in-state footprint than the best-known southern sites alone. The strongest reporting falls in summer, when Nevada’s high country is easiest to reach but low deserts are hottest. That may shape where observers submit records.

The file combines 0 research-grade iNaturalist records and 185 GBIF records. Those 185 records measure documented encounters, not Nevada’s population size. It’s native to Nevada. Nevada doesn’t specifically list it under the state’s conservation framework, and the IUCN lists it as Least Concern.

Occurrence data from iNaturalist and GBIF.

More mammals in Nevada 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
  • NatureServe ExplorerCC-BYthe state conservation rank
  • 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"