Utah mammals

Stephen's Woodrat in Utah

Neotoma stephensi

Native to Utah S1 Critically Imperiled in Utah

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

Stephen's Woodrat in Utah, by the numbers

Rare in Utah 120th most recorded of 141 mammals logged in Utah

14 occurrence records

Records from 2000–2026.

When to look for the Stephen's Woodrat in Utah

Most sightings fall in June.

14 Utah 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 Utah records (table)
MonthRecords
January0
February0
March3
April0
May1
June6
July0
August0
September4
October0
November0
December0

Monthly stephen's woodrat occurrence records (iNaturalist and GBIF) in Utah, 2000–2026.

Seasonality

Year-round in Utah, with recorded sightings peaking in June, with a smaller rise in September.

Occurrence map

Where Stephen's Woodrat has been recorded in Utah

14 records mapped · zoom and drag to explore

14 Utah records mapped

Notable places to look

Park, forest, or monumentiNaturalist records
Glen Canyon National Recreation Area 1
Rainbow Bridge National Monument 1

Protected places with the most stephen's woodrat 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 Utah

CountyRecords
San Juan County 14

The complete county distribution, spread across 1 Utah counties. Every occurrence record falls in one county, so these sum to the total. Counties from GBIF and US Census boundaries.

Utah’s 14 Stephens’ woodrat reports warrant caution because the species is centered well to the southwest and identification can be confused with other Neotoma. A verified animal would be expected in dry scrub with rock crevices or cactus cover, where a woodrat can build a debris den and carry clipped vegetation and other objects back to it.

Stephens’ woodrats are notable for eating chemically defended juniper foliage, aided by specialized gut microbes. That dietary clue is more informative than a generic list of Utah landmarks. The submitted encounters do not establish abundance, year-round residency, or a meaningful seasonal peak without closer review of their localities and identifications.

Occurrence data from GBIF.

More mammals in Utah 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"