Nevada mammals

Long-tailed Vole in Nevada

Microtus longicaudus

Native to Nevada S4 Apparently Secure 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.

Long-tailed Vole in Nevada, by the numbers

Common in Nevada 10th most recorded of 142 mammals logged in Nevada

1,213 occurrence records

Records from 2000–2026.

1,213 total records count every Nevada occurrence from GBIF and iNaturalist; the map plots a georeferenced sample of 300; the monthly chart covers the 1,177 records with a full observation date.

When to look for the Long-tailed Vole in Nevada

Most sightings fall in July.

1,177 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
January1
February2
March0
April10
May64
June280
July505
August258
September22
October22
November10
December3

Monthly long-tailed vole occurrence records (iNaturalist and GBIF) in Nevada, 2000–2026.

Seasonality

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

Occurrence map

Where Long-tailed Vole has been recorded in Nevada

300 records mapped · zoom and drag to explore

300 Nevada records mapped

Notable places to look

Park, forest, or monumentiNaturalist records
Great Basin National Park 137
Pine Forest Range Wilderness Area 38
Ruby Mountains Wilderness 27
Mt. Moriah Wilderness 26
Toiyabe National Forest 20
High Schells Wilderness 10
Jarbidge Wilderness 6
Humboldt National Forest 4

Protected places with the most long-tailed vole 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 377
White Pine County 291
Nye County 146
Lander County 129
Humboldt County 103
Mineral County 61
Washoe County 36
Carson City County 18
Esmeralda County 13
Pershing County 9
Eureka County 9
Churchill County 4
3 other counties 17

The complete county distribution, spread across 15 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 long tailed vole 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 1,213 GBIF records. Those 1,213 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"