California mammals

Northern pocket gopher in California

Thomomys talpoides

Native to California SNR Unranked in California

Not listed as nonindigenous in California by USGS NAS; native to its California 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 pocket gopher in California, by the numbers

Rare in California 174th most recorded of 241 mammals logged in California

549 occurrence records
8 with iNaturalist photos

Records from 2000–2026.

549 total records count every California occurrence from GBIF and iNaturalist; the map plots a georeferenced sample of 300; the monthly chart covers the 544 records with a full observation date.

When to look for the Northern pocket gopher in California

Most sightings fall in May to July.

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

Monthly California records (table)
MonthRecords
January0
February0
March9
April42
May83
June99
July119
August52
September73
October61
November6
December0

Monthly northern pocket gopher occurrence records (iNaturalist and GBIF) in California, 2000–2026.

Seasonality

Year-round in California, with recorded sightings peaking in May–July, with a smaller rise in September.

Occurrence map

Where Northern pocket gopher has been recorded in California

300 records mapped · zoom and drag to explore

300 California records mapped

Notable places to look

Park, forest, or monumentiNaturalist records
Modoc National Forest 17
Inyo National Forest 16
Valentine Eastern Sierra Reserve - Valentine Camp 5
Toiyabe National Forest 4
South Warner Wilderness 3

Protected places with the most northern pocket gopher 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 California

CountyRecords
Modoc County 153
Mono County 149
Lassen County 102
Plumas County 61
Madera County 24
Siskiyou County 23
Sierra County 23
Alpine County 5
Fresno County 2
Tulare County 1
Other localities 6

The complete county distribution, spread across 10 California counties. Every occurrence record falls in one county, so these sum to the total. Counties from GBIF and US Census boundaries.

Northern pocket gopher records reflect California’s dry interior, where sandy flats, open scrub, grassland, and desert basins form a patchwork rather than one continuous habitat. The Central Valley, Mojave Desert, and eastern rain-shadow valleys differ greatly in soil and vegetation.

Agriculture, roads, and expanding towns have broken up many lowland sites, especially in the San Joaquin Valley. Reports don’t measure abundance, and the scarcity of nighttime surveys can leave suitable-looking ground with few or no mapped observations.

The California record set combines 8 research-grade community observations with 544 museum and survey records. Monthly patterns can also reflect weather and observer activity, so they shouldn’t be treated as a direct count of animals.

Occurrence data from iNaturalist and GBIF.

More mammals in California 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"