Townsend's pocket gopher

Thomomys townsendii

LCLeast Concern

Townsend's pocket gopher is a large underground rodent of the northern Great Basin, with Nevada holding most recent mapped records. Broad claws open tunnels through deep valley soil, and fur-lined cheek pouches carry roots and plant pieces. Its surface signs can be conspicuous even when the animal never appears, making mounds a better clue than a hoped-for sighting.

Range through the year

Where Townsend's pocket gopher is seen

Townsend's pocket gopher is recorded in 4 US states from 976 occurrence records, most heavily in California (342 records) and Nevada (294).

Current range976 records · 4 states
AlabamaArizonaArkansasCalifornia · 342 records · view state pageColoradoConnecticutDelawareDistrict of ColumbiaFloridaGeorgiaIdaho · 283 records · view state pageIllinoisIndianaIowaKansasKentuckyLouisianaMaineMarylandMassachusettsMichiganMinnesotaMississippiMissouriMontanaNebraskaNevada · 294 records · view state pageNew HampshireNew JerseyNew MexicoNew YorkNorth CarolinaNorth DakotaOhioOklahomaOregon · 57 records · view state pagePennsylvaniaRhode IslandSouth CarolinaSouth DakotaTennesseeTexasUtahVermontVirginiaWashingtonWest VirginiaWisconsinWyomingAlaskaAKHawaiiHIPuerto RicoPR
Occurrence data by state and month
Townsend's pocket gopher – occurrence records by US state and month (976 total across 4 states)
StateJanFebMarAprMayJunJulAugSepOctNovDecYear
California169613160810933132342
Nevada18·3053578113459204294
Idaho212112834748994875283
Oregon··104581610·3·157

Based on 980 georeferenced US records, 2000-2026. Shading is observation density (where people record sightings), not true abundance. Alaska, Hawaii & Puerto Rico shown as insets.

Explore by state

Townsend's pocket gopher across 4 states

Occurrence records, conservation status, and the places it turns up, state by state. Open a state for detail, or visit its full page.

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.

SizeTownsend's pocket gopher beside a 1.8 m adult, drawn to scale
Created by potrace 1.16, written by Peter Selinger 2001-2019 Created by potrace 1.16, written by Peter Selinger 2001-2019
Body length
18–18 cm7 in–7 in
Weight
190–380 g6.7–13 oz

Silhouettes drawn to scale against a 1.8 m5 ft 11 in adult.

Elevation

From 200 georeferenced records, the Townsend's pocket gopher is recorded from 651 m2,136 ft to 2,220 m7,283 ft, with half of sightings below 1,282 m4,206 ft.

Each band shows the share of georeferenced sightings that fall within it. Records cluster where people live and hike, so low, populated elevations are over-represented. Read this as observation density, not true abundance.

Best encounter

Where and when to see a Townsend's pocket gopher

Your best chance: California.

Where
CaliforniaCA

Life history

The Townsend's pocket gopher (190–380 g6.7–13.4 oz) is a herbivore that first breeds around 0.7 years, carries a 24-day gestation, and bears about 5.3 young per litter. Maximum recorded longevity is 6.1 years.

Life cycle

  1. Gestation24 days
  2. Birthlitter of 5.3 young
  3. Sexual maturity0.7 yr (female) · 0.9 yr (male)
  4. Typical lifespan6.1 years
  5. Maximum recorded longevity6.1 years

Reproduction

Gestation
24days
Litter size
5.3youngaverage
Litters / year
2litters
Age at first breeding
0.7years♀ 0.7 · ♂ 0.9 yr

Diet composition

Herbivore

By foraging composition: 100% plant material.

  • Plant material100%

Most active at dawn and dusk and at night.

Typical values for the species, not local measurements. Maximum longevity is the longest lifespan on record; most individuals live far less.

Commonly confused with

Animals people sometimes mistake for the townsend's pocket gopher, and how to tell them apart.

An underground life in Great Basin valleys

The species uses deep, workable soils in Nevada and nearby parts of Idaho and Oregon. Agriculture can sometimes create suitable loose ground, though flooding and heavy compaction can close habitat. Roots, bulbs, and other plant parts are clipped from tunnels or pulled below. Food is carried in external pouches, and waste soil is pushed to the surface as mounds.

How it finds food and avoids danger

Roots, bulbs, and other plant parts are clipped from tunnels or pulled below. Food is carried in external pouches, and waste soil is pushed to the surface as mounds. It doesn’t depend on open exposure when cover is available. Short movements between shelter and food reduce risk, especially where owls, snakes, foxes, or other hunters patrol.

Reading the record pattern

A line of fresh mounds can mark an active tunnel system, but mound counts aren’t animal counts. One gopher can move a surprising amount of soil while feeding and maintaining passages. Seasonal and geographic reports show where people have documented the species. They don’t measure abundance, and a blank area may reflect access, survey methods, or identification difficulty.

Breeding and the next generation

Young are born in protected nests or burrows, depending on the species’ way of life. Timing is tied to local food and weather, so it can shift across elevation and latitude. Parents don’t raise young in exposed ground when a sheltered chamber or nest is available.

Conservation in a changing West

The most useful conservation question isn’t just how many dots appear in a database. It’s whether connected habitat still supplies food, shelter, workable ground, and safe movement. Drought, severe fire, development, and altered water can matter differently across the range. Protecting the habitat features this species actually uses gives local populations more room to persist.

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
  • PhyloPicCC0 / CC-BY per itemthe to-scale silhouettesXavier A. Jenkins (Geomyidae) · Andrew A. Farke (human silhouette, CC-BY 3.0)
  • AnAge (HAGR)CC-BY 3.0longevity, maturity, and gestation figures
  • IUCN Red Listattributed factthe global conservation status
  • Amniote Life-History DatabaseCC0 · public domainreproduction figures
  • EltonTraitsCC0 · public domaindiet and foraging-activity data