New Mexico mammals

Northern Rock Mouse in New Mexico

Peromyscus nasutus

Native to New Mexico S4 Apparently Secure in New Mexico

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

Northern Rock Mouse in New Mexico, by the numbers

Common in New Mexico 16th most recorded of 176 mammals logged in New Mexico

1,371 occurrence records

Records from 2000–2026.

1,371 total records count every New Mexico occurrence from GBIF and iNaturalist; the map plots a georeferenced sample of 300; the monthly chart covers the 1,340 records with a full observation date.

When to look for the Northern Rock Mouse in New Mexico

Most sightings fall in March.

1,340 New Mexico occurrence records (iNaturalist and GBIF) by month of year, 2000–2026. Shows when the species is recorded, not a guarantee of presence.

Monthly New Mexico records (table)
MonthRecords
January101
February49
March250
April114
May86
June74
July83
August64
September167
October192
November73
December87

Monthly northern rock mouse occurrence records (iNaturalist and GBIF) in New Mexico, 2000–2026.

Seasonality

Year-round in New Mexico, with recorded sightings peaking in March, with a smaller rise in September–October.

Occurrence map

Where Northern Rock Mouse has been recorded in New Mexico

300 records mapped · zoom and drag to explore

300 New Mexico records mapped

Notable places to look

Park, forest, or monumentiNaturalist records
State Trust Land 21
Cebolla Wilderness Area 20
Bandelier National Monument 15
El Malpais National Monument 14
Apache Kid Wilderness 12
Río Grande Del Norte National Monument 6
Sugarite Canyon State Park 5
White Mountain Wilderness 4

Protected places with the most northern rock mouse 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 New Mexico

CountyRecords
Lincoln County 445
Cibola County 277
Otero County 75
Socorro County 70
Santa Fe County 65
Bernalillo County 57
Sandoval County 54
Catron County 37
Torrance County 25
Grant County 24
Eddy County 23
McKinley County 23
15 other counties 196

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

Northern rock mouse reports connect three very different New Mexico landmarks. Santa Fe and Gila national forests point to rugged woodland, while Bosque del Apache brings the record down toward the Rio Grande and its rocky desert margins.

May and June form one reporting peak, followed by another in October and November. That split is more likely to reflect field effort and detection than two population booms. Night-active mice stay hidden in broken ground, so even suitable places can produce few casual reports.

Occurrence data from GBIF.

More mammals in New Mexico 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"