North Carolina mammals

Rock Vole in North Carolina

Microtus chrotorrhinus

Native to North Carolina S3 Vulnerable in North Carolina

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

Rock Vole in North Carolina, by the numbers

Occasional in North Carolina 61st most recorded of 125 mammals logged in North Carolina

26 occurrence records

Records from 2000–2026.

26 total records count every North Carolina occurrence from GBIF and iNaturalist; the map plots a georeferenced sample of 23; the monthly chart covers the 23 records with a full observation date.

When to look for the Rock Vole in North Carolina

Most sightings fall in July to August.

23 North Carolina occurrence records (iNaturalist and GBIF) by month of year, 2000–2026. Shows when the species is recorded, not a guarantee of presence. Based on a small number of dated records; the seasonal pattern may not be representative.

Monthly North Carolina records (table)
MonthRecords
January0
February0
March0
April4
May0
June1
July7
August6
September3
October1
November1
December0

Monthly rock vole occurrence records (iNaturalist and GBIF) in North Carolina, 2000–2026.

Seasonality

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

Occurrence map

Where Rock Vole has been recorded in North Carolina

23 records mapped · zoom and drag to explore

23 North Carolina records mapped

Notable places to look

Park, forest, or monumentiNaturalist records
Great Smoky Mountains National Park 13
Pisgah National Forest 1
Appalachian National Scenic Trail 1

Protected places with the most rock 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 North Carolina

CountyRecords
Haywood County 12
Swain County 7
Jackson County 1
Graham County 1
New Hanover County 1
Transylvania County 1
Other localities 3

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

North Carolina’s rock voles are a cold-adapted holdout from the last ice age, restricted to the highest ridges of the Blue Ridge and Southern Appalachians near the Tennessee line, close to the Great Smoky Mountains. That’s the southern edge of the species’ entire range, so a North Carolina record marks one of its southernmost known points on Earth.

It lives in seepage areas, mossy rockslides, and boulder fields at high elevation, where cool, damp microclimates persist even in summer. That narrow habitat requirement is also why the state’s roughly two dozen records stay so sparse, since suitable ground is limited to a handful of high peaks rather than spread across the mountains generally.

Records show slight peaks in April and September, though with numbers this low any seasonal pattern should be read loosely. NatureServe ranks the species vulnerable in North Carolina, and every mapped record here represents a genuinely rare find at the southern limit of where rock voles can survive.

Occurrence data from GBIF.

More mammals in North Carolina 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"