Mammals of Utah

123 established wild species in Utah. Plus 17 range-listed species with few or no digitized records.

All species A-Z →

Abert's Squirrel (Sciurus aberti)

Abert's Squirrel

Sciurus aberti

Rarely seen in Utah 28 sightings
Size 27.9–76.2 cm0.9–2.5 ft Weight 540–971 g1.2–2.1 lb active by day pinyon-juniper woodland

Sightings by month

Allen's big-eared bat roosting on tree bark at night

Allen's Big-eared Bat

Idionycteris phyllotis

Rarely seen in Utah 25 sightings
Size 10.3–11.8 cm4.1–4.6 in Weight 8–16 g0.3–0.6 oz active by night coastal

Sightings by month

AmericanBadger

American Badger

Taxidea taxus

Occasional in Utah 204 sightings
Size 63.9 cm2.1 ft Weight 4–12 kg8.8–26.5 lb active by night grassland

Sightings by month

Beaver swimming low in murky green pond water with only its wet head and back above the surface

American Beaver

Castor canadensis

Common in Utah 636 sightings
Size 60–90 cm2–3 ft Weight 11–32 kg24.3–70.5 lb active day & night river

Sightings by month

Image-American bison rests at hot spring in yellowstone national park 1

American Bison

Bison bison

Common in Utah 2,199 sightings
Size 1.9–2 m6.1–6.6 ft Weight 360–1000 kg793.7–2204.6 lb active day & night grassland

Sightings by month

Oso negro (Ursus americanus), Parque natural provincial Tatshenshini-Alsek, Yukón, Canadá, 2017-08-25, DD 85

American Black Bear

Ursus americanus

Occasional in Utah 200 sightings
Size 1.2–2 m3.9–6.6 ft Weight 40–250 kg88.2–551.2 lb active by night conifer forest

Sightings by month

Mustela Erminea head

American Ermine

Mustela erminea

Rarely seen in Utah 19 sightings
Size 17–33 cm6.7–13 in Weight 70–260 g2.5–9.2 oz active by night coniferous forest

Sightings by month

Norka amerykańska (neovison vison)

American Mink

Neogale vison

Occasional in Utah 139 sightings
Size 33–45.7 cm13–18 in Weight 0.5–1.4 kg1–3 lb active day & night lake

Sightings by month

American pika perched on a talus rock with a mouthful of alpine wildflowers

American Pika

Ochotona princeps

Common in Utah 708 sightings
Size 19 cm7.5 in Weight 140 g4.9 oz active day & night rocky outcrop

Sightings by month

Tamiasciurus hudsonicus James Gardens

American Red Squirrel

Tamiasciurus hudsonicus

Common in Utah 1,275 sightings
Size 17–23 cm6.7–9.1 in Weight 140–310 g4.9–10.9 oz active by day wetland

Sightings by month

American water shrew swimming at the surface of a stream, seen from above

American water shrew

Sorex palustris

Marginal occurrence · 561 records
Size 8 cm3.1 in Weight 8–18 g0.3–0.6 oz active day & night river
Banner-tailed Kangaroo Rat (Dipodomys spectabilis)

Banner-tailed Kangaroo Rat

Dipodomys spectabilis

Marginal occurrence · 1 record
Size 32–42 cm12.6–16.5 in Weight 100–180 g3.5–6.3 oz active by night desert

Sightings by month

SQUIRREL, BELDING'S GROUND (Spermophilus beldingi) (8-1-2016) 10,000 ft,, ruby mts., elko co, nv (7) (29286699865)

Belding's Ground Squirrel

Urocitellus beldingi

Occasional in Utah 52 sightings
Size 23–30 cm9.1–11.8 in Weight 290 g10.2 oz active by day lake

Sightings by month

Big Brown Bats (Eptesicus fuscus)

Big Brown Bat

Eptesicus fuscus

Rarely seen in Utah 40 sightings
Size 7.5 cm3 in Weight 17 g0.6 oz active by night agricultural

Sightings by month

Big free-tailed bat clinging to tree bark with long ears and narrow wings visible

Big Free-tailed Bat

Nyctinomops macrotis

Occasional in Utah 57 sightings
Size 12–16 cm4.7–6.3 in Weight 21 g0.7 oz active by night cave

Sightings by month

New Mexico Bighorn Sheep

Bighorn Sheep

Ovis canadensis

Common in Utah 1,829 sightings
Size 1.7 m5.5 ft Weight 58–143 kg127.9–315.3 lb active day & night desert

Sightings by month

Live black rat climbing through branches

Black Rat

Rattus rattus

Rarely seen in Utah 12 sightings
Size 16–24 cm6.3–9.4 in Weight 75–230 g2.6–8.1 oz active by night agricultural

Sightings by month

Black-footed ferret checking out his new digs (30027077935)

Black-footed Ferret

Mustela nigripes

Marginal occurrence · 2 records
Size 38–50 cm15–19.7 in Weight 0.7–1.2 kg1.4–2.6 lb active by night great basin desert
Black-tailed jackrabbit (6785302534)

Black-tailed Jackrabbit

Lepus californicus

Common in Utah 486 sightings
Size 47–63 cm1.5–2.1 ft Weight 1.3–3.6 kg2.9–7.9 lb active by night open desert

Sightings by month

Bobcat (Lynx rufus)

Bobcat

Lynx rufus

Occasional in Utah 150 sightings
Size 30–60 cm11.8–23.6 in Weight 4–18 kg8.8–39.7 lb active by night forest edge

Sightings by month

AI-generated image: Bonneville Kangaroo Mouse resting on sandy desert soil near shrubs. No public-domain photograph of this species exists. This image was generated with AI from verified reference material and reviewed by our editorial team for accuracy

Bonneville Kangaroo Mouse

Microdipodops albiventer

Marginal occurrence · 7 records
active by night great basin desert
Botta's Pocket Gopher (Thomomys bottae)

Botta's Pocket Gopher

Thomomys bottae

Common in Utah 1,613 sightings
Size 18–27 cm7.1–10.6 in Weight 160–250 g5.6–8.8 oz active day & night woodland

Sightings by month

Brush mouse on a rocky slope

Brush Mouse

Peromyscus boylii

Common in Utah 1,068 sightings
Size 10.7 cm4.2 in Weight 24 g0.8 oz active by night chaparral

Sightings by month

Bushy-tailed woodrat peering from forest floor cover at Oregon Caves

Bushy-tailed Woodrat

Neotoma cinerea

Occasional in Utah 61 sightings
Size 22.7 cm8.9 in Weight 286 g10.1 oz active by night coniferous forest

Sightings by month

Cactus Deermouse (Peromyscus eremicus)

Cactus Deermouse

Peromyscus eremicus

Occasional in Utah 352 sightings
Size 9.1 cm3.6 in Weight 22 g0.8 oz active by night desert

Sightings by month

California Myotis (Myotis californicus)

California Myotis

Myotis californicus

Occasional in Utah 157 sightings
Size 3–3.5 cm1.2–1.4 in Weight 4 g0.1 oz active by night coastal

Sightings by month

Lynx Canadensis

Canada Lynx

Lynx canadensis

Marginal occurrence · 6 records
Size 48–56 cm18.9–22 in Weight 5–17 kg11–37.5 lb active by night coniferous forest
Canyon bat clinging to weathered tree bark

Canyon Bat

Parastrellus hesperus

Occasional in Utah 60 sightings
Size 6.2–8 cm2.4–3.1 in Weight 3–6 g0.1–0.2 oz active by night desert

Sightings by month

AI-generated image: canyon mouse crouched alert on desert rock at dusk. No public-domain photograph of this species exists. This image was generated with AI from verified reference material and reviewed by our editorial team for accuracy

Canyon mouse

Peromyscus crinitus

Common in Utah 1,968 sightings
Size 8.4 cm3.3 in Weight 16 g0.6 oz active by night desert

Sightings by month

Chisel-toothed kangaroo rat crouched on gravelly desert soil

Chisel-toothed kangaroo rat

Dipodomys microps

Common in Utah 840 sightings
Size 15.6 cm6.1 in Weight 55 g1.9 oz active by night desert

Sightings by month

Cliff Chipmunk (Neotamias dorsalis)

Cliff Chipmunk

Neotamias dorsalis

Occasional in Utah 239 sightings
Size 21–25 cm8.3–9.8 in Weight 55–75 g1.9–2.6 oz active by day rocky outcrop

Sightings by month

Colorado Chipmunk in natural habitat

Colorado Chipmunk

Neotamias quadrivittatus

Occasional in Utah 263 sightings
Size 20–24 cm7.9–9.4 in Weight 62 g2.2 oz active by day wetland

Sightings by month

Common golden-mantled ground squirrel on a fallen log, showing its plain face and striped sides

Common Golden-mantled Ground Squirrel

Callospermophilus lateralis

Common in Utah 1,538 sightings
Size 23–32 cm9.1–12.6 in Weight 120–350 g4.2–12.3 oz active by day chaparral

Sightings by month

Common Raccoon in Hugh Taylor Birch State Park

Common Raccoon

Procyon lotor

Common in Utah 600 sightings
Size 40–70 cm1.3–2.3 ft Weight 3.5–9 kg7.7–19.8 lb active by night mixed forest

Sightings by month

Mother Coyote Sitting, Watching Over Den, Photo 1 of 2 (47924154788)

Coyote

Canis latrans

Common in Utah 941 sightings
Size 0.8–1 m2.5–3.3 ft Weight 7–21 kg15.4–46.3 lb active day & night urban

Sightings by month

Coypus

Coypu

Myocastor coypus

Range-listed · no digitized records yet
Size 40–60 cm15.7–23.6 in Weight 4–10 kg8.8–22 lb active by night river
AI-generated image: Crawford's gray shrew walking through leaf litter with its snout lowered. No public-domain photograph of this species exists. This image was generated with AI from verified reference material and reviewed by our editorial team for accuracy

Crawford's Gray Shrew

Notiosorex crawfordi

Size 7–10 cm2.8–3.9 in Weight 3–5 g0.1–0.2 oz active by night desert

Sightings by month

Dark kangaroo mouse on sandy ground at Mono Basin, California

Dark kangaroo mouse

Microdipodops megacephalus

Marginal occurrence · 231 records
Size 7.5 cm3 in Weight 13 g0.5 oz active by night river
Desert cottontail rabbit (Sylvilagus audubonii) (5-13-11) patagonia lake, scc, az -01 (5720663856)

Desert Cottontail

Sylvilagus audubonii

Common in Utah 610 sightings
Size 35–43 cm13.8–16.9 in Weight 0.7–1.2 kg1.5–2.6 lb active day & night desert

Sightings by month

Desert kangaroo rat leaping across open sand

Desert Kangaroo Rat

Dipodomys deserti

Rarely seen in Utah 23 sightings
Size 16.9 cm6.7 in Weight 107 g3.8 oz active by night desert

Sightings by month

POCKETMOUSE, DESERT? (Chaetodipus penicillatus) (7-14-12) 78 circulo montana, patagonia lake ranch estates, scc, az -01 (7578750708)

Desert Pocket Mouse

Chaetodipus penicillatus

Marginal occurrence · 3 records
Size 7.7 cm3 in Weight 16 g0.6 oz active by night desert

Sightings by month

Desert spotted skunk walking along a low wall at night, showing its broken white stripe pattern

Desert Spotted Skunk

Spilogale leucoparia

Range-listed · no digitized records yet
Size 35–55 cm13.8–21.7 in Weight 200–700 g0.4–1.5 lb active by night coastal
Desert woodrat facing the camera among desert rocks at night

Desert Woodrat

Neotoma lepida

Common in Utah 402 sightings
Size 17.1 cm6.7 in Weight 113 g4 oz active by night desert

Sightings by month

AI-generated image: Dwarf Shrew in side profile crossing rocky alpine gravel. No public-domain photograph of this species exists. This image was generated with AI from verified reference material and reviewed by our editorial team for accuracy

Dwarf Shrew

Sorex nanus

Rarely seen in Utah 30 sightings
Size 5.6 cm2.2 in Weight 2–3 g0.1 oz active day & night great basin desert

Sightings by month

Elk (Cervus canadensis)

Elk

Cervus canadensis

Common in Utah 567 sightings
Size 1.6–2.7 m5.2–8.9 ft Weight 178–497 kg392.4–1095.7 lb active day & night forest edge

Sightings by month

European rabbit feeding in dry vegetation

European Rabbit

Oryctolagus cuniculus

Occasional in Utah 87 sightings
Size 34–50 cm13.4–19.7 in Weight 1–2.5 kg2.2–5.5 lb active by night grassland

Sightings by month

Sciurus niger

Fox Squirrel

Sciurus niger

Common in Utah 3,527 sightings
Size 25.4–38.1 cm10–15 in Weight 804 g1.8 lb active by day river

Sightings by month

Fremont's Squirrel in natural habitat

Fremont's Squirrel

Tamiasciurus fremonti

Rarely seen in Utah 19 sightings
Size 27–35 cm10.6–13.8 in Weight 140–250 g4.9–8.8 oz active by day mixed conifer

Sightings by month

Fringed Myotis (Myotis thysanodes)

Fringed Myotis

Myotis thysanodes

Occasional in Utah 59 sightings
Size 5.4 cm2.1 in Weight 9 g0.3 oz active by night desert

Sightings by month

Fulvous Pocket Gopher (Megascapheus fulvus)

Fulvous Pocket Gopher

Megascapheus fulvus

Occasional in Utah 108 sightings
Size 20.9–23.1 cm8.2–9.1 in Weight 95 g3.4 oz active by night great basin desert

Sightings by month

Gray fox standing in dappled woodland

Gray Fox

Urocyon cinereoargenteus

Occasional in Utah 184 sightings
Size 0.8–1.1 m2.5–3.7 ft Weight 3–9 kg6.6–19.8 lb active day & night brushy woodland

Sightings by month

Silver-gray wolf walking along a gravel bank in Alaska

Gray Wolf

Canis lupus

Occasional in Utah 56 sightings
Size 1.1–1.6 m3.4–5.2 ft Weight 23–80 kg50.7–176.4 lb active day & night cave

Sightings by month

Great Basin Pocket Mouse peering out from beneath desert shrub leaves

Great Basin Pocket Mouse

Perognathus parvus

Common in Utah 2,071 sightings
Size 8.2 cm3.2 in Weight 21–22 g0.7–0.8 oz active by night great basin desert

Sightings by month

Gunnison's Prairie Dog (Cynomys gunnisoni)

Gunnison's Prairie Dog

Cynomys gunnisoni

Occasional in Utah 69 sightings
Size 30.5 cm12 in Weight 807 g1.8 lb active by day desert

Sightings by month

Hopi chipmunk feeding in a juniper

Hopi Chipmunk

Neotamias rufus

Common in Utah 700 sightings
Size 19–23.5 cm7.5–9.3 in Weight 52–62 g1.8–2.2 oz active day & night rocky outcrop

Sightings by month

House mouse in dry plant litter

House Mouse

Mus musculus

Occasional in Utah 341 sightings
Size 5–10 cm2–3.9 in Weight 12–30 g0.4–1.1 oz active by night agricultural

Sightings by month

Taschenratte-Zion-National-Park

Idaho pocket gopher

Thomomys idahoensis

Rarely seen in Utah 41 sightings
Size 22.9 cm9 in Weight 101 g3.6 oz active by night savanna

Sightings by month

Kit fox (Vulpes macrotis) standing in profile at night in desert scrub

Kit Fox

Vulpes macrotis

Occasional in Utah 60 sightings
Size 37–53 cm14.6–20.9 in Weight 1.6–2.7 kg3.5–6 lb active by night desert

Sightings by month

Least Chipmunk in natural habitat

Least Chipmunk

Neotamias minimus

Occasional in Utah 338 sightings
Size 10–11 cm3.9–4.3 in Weight 41–47 g1.4–1.7 oz active by day shrubland

Sightings by month

Little pocket mouse moving over pale sandy soil at night

Little pocket mouse

Perognathus longimembris

Common in Utah 916 sightings
Size 10.8–13.2 cm4.3–5.2 in Weight 8 g0.3 oz active by night grassland

Sightings by month

Long-eared myotis peering over weathered wood

Long-eared Myotis

Myotis evotis

Rarely seen in Utah 24 sightings
Size 8.7–10 cm3.4–3.9 in Weight 7 g0.2 oz active by night shrubland

Sightings by month

Long-legged myotis roosting on tree bark with wings folded

Long-legged Myotis

Myotis volans

Rarely seen in Utah 17 sightings
Size 8.3–10.6 cm3.3–4.2 in Weight 6–10 g0.2–0.4 oz active by night urban

Sightings by month

Long-tailed pocket mouse perched on a flat rock, whiskers fanned forward and one eye alert, desert gravel in the background

Long-tailed Pocket Mouse

Chaetodipus formosus

Occasional in Utah 199 sightings
Size 19.4 cm7.6 in Weight 19 g0.7 oz active by night desert

Sightings by month

Long-tailed vole peering from rocks

Long-tailed Vole

Microtus longicaudus

Common in Utah 2,761 sightings
Size 13.5 cm5.3 in Weight 50 g1.8 oz active day & night cave

Sightings by month

Long-tailed weasel standing alert in grass with its black-tipped tail curled behind it, Sonoma County, California

Long-tailed Weasel

Neogale frenata

Occasional in Utah 297 sightings
Size 24.8 cm9.8 in Weight 170 g6 oz active day & night wetland

Sightings by month

Sorex cinereus, Harwich, Chatham, Ontario, Canada 1

Masked Shrew

Sorex cinereus

Occasional in Utah 84 sightings
Size 6.9 cm2.7 in Weight 5 g0.2 oz active day & night grassland

Sightings by month

Merriam's kangaroo rat on desert sand at night

Merriam's Kangaroo Rat

Dipodomys merriami

Occasional in Utah 227 sightings
Size 21–28 cm8.3–11 in Weight 33–53 g1.2–1.9 oz active by night sonoran desert

Sightings by month

AI-generated image: Merriam's Shrew in side profile on dry soil among rocks. No public-domain photograph of this species exists. This image was generated with AI from verified reference material and reviewed by our editorial team for accuracy

Merriam's Shrew

Sorex merriami

Rarely seen in Utah 26 sightings
Size 6.2 cm2.4 in Weight 5 g0.2 oz active day & night desert

Sightings by month

Tadarida brasiliensis - Bahamas - Long Island (sic) - Cartwright Cave - March 2006 - 2

Mexican Free-tailed Bat

Tadarida brasiliensis

Occasional in Utah 54 sightings
Size 3.1–4.1 cm1.2–1.6 in Weight 7–12 g0.2–0.4 oz active by night cave

Sightings by month

Mexican woodrat on a bed of pine needles, showing its gray-brown coat and large rounded ears

Mexican Woodrat

Neotoma mexicana

Occasional in Utah 198 sightings
Size 19.1 cm7.5 in Weight 140–185 g4.9–6.5 oz active by night coniferous forest

Sightings by month

Mogollon Vole (Microtus mogollonensis)

Mogollon Vole

Microtus mogollonensis

Rarely seen in Utah 34 sightings
Size 10–13 cm3.9–5.1 in Weight 28–50 g1–1.8 oz active day & night grassland
AI-generated image: Montane Shrew in side profile on mossy forest floor. No public-domain photograph of this species exists. This image was generated with AI from verified reference material and reviewed by our editorial team for accuracy

Montane Shrew

Sorex monticolus

Common in Utah 1,692 sightings
Size 6.8 cm2.7 in Weight 6 g0.2 oz active day & night riparian

Sightings by month

Montane vole peering out from lichen-covered alpine rocks

Montane Vole

Microtus montanus

Common in Utah 1,894 sightings
Size 14–22 cm5.5–8.7 in Weight 35 g1.2 oz active day & night montane forest

Sightings by month

Cow moose standing in a marshy Alaska wetland

Moose

Alces alces

Common in Utah 1,553 sightings
Size 2.4–3.1 m7.9–10.2 ft Weight 200–490 kg440.9–1080.3 lb active day & night wetland

Sightings by month

Mountain cottontail in dry western woodland edge

Mountain Cottontail

Sylvilagus nuttallii

Common in Utah 578 sightings
Size 27.9–38.1 cm11–15 in Weight 0.6–1.1 kg1.3–2.4 lb active day & night coniferous forest

Sightings by month

Mountain goat standing on a rocky overlook above Hidden Lake in Glacier National Park with snow-streaked peaks behind

Mountain Goat

Oreamnos americanus

Occasional in Utah 283 sightings
Size 1.2–1.8 m3.9–5.9 ft Weight 45–140 kg99.2–308.6 lb active day & night subalpine

Sightings by month

Mountain Lion (Puma concolor)

Mountain Lion

Puma concolor

Occasional in Utah 164 sightings
Size 1–1.5 m3.3–5.1 ft Weight 36–120 kg79.4–264.6 lb active day & night montane forest

Sightings by month

Mule Deer (Odocoileus hemionus)

Mule Deer

Odocoileus hemionus

Common in Utah 7,902 sightings
Size 1.3–1.7 m4.1–5.5 ft Weight 55–150 kg121.3–330.7 lb active day & night river

Sightings by month

Muskrats resting on a floating log in open water

Muskrat

Ondatra zibethicus

Common in Utah 733 sightings
Size 25–36 cm9.8–14.2 in Weight 0.6–2 kg1.3–4.4 lb active day & night wetland

Sightings by month

Deer Mouse (Peromyscus maniculatus) (9310532204)

North American Deermouse

Peromyscus maniculatus

Common in Utah 21,273 sightings
Size 8–10 cm3.1–3.9 in Weight 21 g0.7 oz active by night river

Sightings by month

Erethizontidae Erethizon dorsatum 3.2

North American Porcupine

Erethizon dorsatus

Common in Utah 454 sightings
Size 60–90 cm2–3 ft Weight 3.5–12 kg7.7–26.5 lb active by night mixed forest

Sightings by month

River Otter (Lontra canadensis)

North American River Otter

Lontra canadensis

Rarely seen in Utah 31 sightings
Size 0.7–1.1 m2.2–3.5 ft Weight 5–15 kg11–33.1 lb active day & night river

Sightings by month

Northern Flying Squirrel (Glaucomys sabrinus)

Northern Flying Squirrel

Glaucomys sabrinus

Rarely seen in Utah 32 sightings
Size 25–37 cm9.8–14.6 in Weight 148 g5.2 oz active by night mixed conifer

Sightings by month

Northern grasshopper mouse walking beside desert grass

Northern Grasshopper Mouse

Onychomys leucogaster

Common in Utah 420 sightings
Size 12.7 cm5 in Weight 33 g1.2 oz active by night grassland

Sightings by month

Hoary bat in flight against blue sky, wings spread to show its yellow throat patch and heavily frosted fur

Northern Hoary Bat

Lasiurus cinereus

Rarely seen in Utah 21 sightings
Size 13–15 cm5.1–5.9 in Weight 26 g0.9 oz active by night cave

Sightings by month

Northern pocket gopher in low vegetation

Northern pocket gopher

Thomomys talpoides

Occasional in Utah 119 sightings
Size 22.9 cm9 in Weight 60–160 g2.1–5.6 oz active day & night river

Sightings by month

Live Norway rat beside shallow water

Norway Rat

Rattus norvegicus

Occasional in Utah 120 sightings
Size 15–28 cm5.9–11 in Weight 140–500 g0.3–1.1 lb active by night urban

Sightings by month

Olive-backed pocket mouse in grass and dry litter at night

Olive-backed Pocket Mouse

Perognathus fasciatus

Rarely seen in Utah 31 sightings
Size 8 cm3.1 in Weight 11–14 g0.4–0.5 oz active by night grassland

Sightings by month

Ord's kangaroo rat standing in profile, showing its huge hind feet and long tufted tail

Ord's Kangaroo Rat

Dipodomys ordii

Common in Utah 3,812 sightings
Size 21–36.5 cm8.3–14.4 in Weight 50 g1.8 oz active by night great basin desert

Sightings by month

Pacific Marten (Martes caurina)

Pacific Marten

Martes caurina

Rarely seen in Utah 22 sightings
Size 50–70 cm1.6–2.3 ft Weight 0.5–1.4 kg1.1–3.1 lb active by night coniferous forest

Sightings by month

Pallid bat roosting on a cave wall

Pallid Bat

Antrozous pallidus

Rarely seen in Utah 37 sightings
Size 6–8.5 cm2.4–3.3 in Weight 14–25 g0.5–0.9 oz active by night desert scrub

Sightings by month

Pinyon mouse under loose bark showing large ears and long tail

Pinyon mouse

Peromyscus truei

Common in Utah 2,670 sightings
Size 10.2 cm4 in Weight 33 g1.2 oz active by night pinyon-juniper woodland

Sightings by month

Piute ground squirrel in profile on a dirt mound in sparse desert scrub

Piute Ground Squirrel

Urocitellus mollis

Occasional in Utah 45 sightings
Size 24.5–29.4 cm9.6–11.6 in Weight 82–205 g2.9–7.2 oz active by day great basin desert

Sightings by month

Apache pocket mouse, a subspecies of the plains pocket mouse, eating seeds on sandy ground

Plains pocket mouse

Perognathus flavescens

Common in Utah 463 sightings
Size 6.9 cm2.7 in Weight 9 g0.3 oz active by night desert

Sightings by month

AI-generated image: Preble's Shrew in side profile on dry soil among grass. No public-domain photograph of this species exists. This image was generated with AI from verified reference material and reviewed by our editorial team for accuracy

Preble's Shrew

Sorex preblei

Marginal occurrence · 8 records
Size 5.5 cm2.2 in Weight 3 g0.1 oz active day & night great basin desert
Pronghorn buck standing in a meadow of yellow wildflowers

Pronghorn

Antilocapra americana

Common in Utah 2,257 sightings
Size 1.2–1.5 m3.9–4.9 ft Weight 32–70 kg70.5–154.3 lb active day & night grassland

Sightings by month

Pygmy rabbit (22694681746)

Pygmy Rabbit

Sylvilagus idahoensis

Occasional in Utah 51 sightings
Size 23.5–29.5 cm9.3–11.6 in Weight 375–500 g0.8–1.1 lb active day & night great basin desert

Sightings by month

Red Fox (Vulpes vulpes)

Red Fox

Vulpes vulpes

Common in Utah 535 sightings
Size 43 cm16.9 in Weight 5–10 kg11–22 lb active day & night desert

Sightings by month

Ringtail standing on rocks at night with its black-and-white banded tail visible

Ringtail

Bassariscus astutus

Rarely seen in Utah 43 sightings
Size 30–42 cm11.8–16.5 in Weight 0.7–1.1 kg1.5–2.5 lb active by night urban

Sightings by month

Rock Pocket Mouse (Chaetodipus intermedius)

Rock Pocket Mouse

Chaetodipus intermedius

Occasional in Utah 68 sightings
Size 8.4–11.2 cm3.3–4.4 in Weight 15 g0.5 oz active by night rocky outcrop

Sightings by month

Rock squirrel perched on a sunlit boulder

Rock Squirrel

Otospermophilus variegatus

Common in Utah 3,117 sightings
Size 43–53 cm16.9–20.9 in Weight 450–875 g1–1.9 lb active by day lake

Sightings by month

Sagebrush vole partly hidden in low shrub cover

Sagebrush Vole

Lemmiscus curtatus

Rarely seen in Utah 40 sightings
Size 11–14 cm4.3–5.5 in Weight 28 g1 oz active day & night shrubland

Sightings by month

Silky pocket mouse crouched on sandy grassland ground

Silky Pocket Mouse

Perognathus flavus

Occasional in Utah 108 sightings
Size 9.5–11.8 cm3.7–4.6 in Weight 6–9 g0.2–0.3 oz active by night grassland

Sightings by month

Silver-haired bat tucked into loose bark

Silver-haired Bat

Lasionycteris noctivagans

Occasional in Utah 71 sightings
Size 9.5–11.5 cm3.7–4.5 in Weight 11 g0.4 oz active by night river

Sightings by month

Lepus americanus 5459 cropped

Snowshoe Hare

Lepus americanus

Occasional in Utah 114 sightings
Size 41–52 cm16.1–20.5 in Weight 1.4–1.6 kg3.2–3.4 lb active by night coniferous forest

Sightings by month

AI-generated image: Southern grasshopper mouse alert on desert sand at night, pale fawn upperparts and white underparts. No public-domain photograph of this species exists. This image was generated with AI from verified reference material and reviewed by our editorial team for accuracy

Southern Grasshopper Mouse

Onychomys torridus

Occasional in Utah 95 sightings
Size 10.3 cm4.1 in Weight 22 g0.8 oz active by night desert

Sightings by month

Southern pocket gopher in pine litter

Southern Pocket Gopher

Megascapheus umbrinus

Marginal occurrence · 108 records
Size 20–25 cm7.9–9.8 in Weight 100–200 g3.5–7.1 oz active day & night sky island montane meadows
Southern red-backed vole feeding among sunflower seeds on snow

Southern Red-backed Vole

Clethrionomys gapperi

Common in Utah 565 sightings
Size 12–16.5 cm4.7–6.5 in Weight 6–42 g0.2–1.5 oz active by night mixed forest

Sightings by month

Live western jumping mouse crouched in leaf litter with its long tail curving behind

Southwestern Jumping Mouse

Zapus princeps

Common in Utah 795 sightings
Size 22–25 cm8.7–9.8 in Weight 28 g1 oz active by night montane forest

Sightings by month

Spotted bat facing forward with huge pale ears and white shoulder patches

Spotted Bat

Euderma maculatum

Rarely seen in Utah 4 sightings
Size 12.6 cm5 in Weight 16–20 g0.6–0.7 oz active by night rocky outcrop

Sightings by month

Spotted ground squirrel sitting upright at a burrow entrance, its back covered in scattered white spots

Spotted Ground Squirrel

Xerospermophilus spilosoma

Marginal occurrence · 8 records
Size 18–25 cm7.1–9.8 in Weight 100–200 g3.5–7.1 oz active by day grassland
AI-generated image: Stephen's Woodrat in side profile on rock beside stick nest at night. No public-domain photograph of this species exists. This image was generated with AI from verified reference material and reviewed by our editorial team for accuracy

Stephen's Woodrat

Neotoma stephensi

Rarely seen in Utah 14 sightings
Size 17.1 cm6.7 in Weight 125 g4.4 oz active by night pinyon-juniper woodland

Sightings by month

Mephitis mephitis in Dierenpark Zie-ZOO

Striped Skunk

Mephitis mephitis

Occasional in Utah 235 sightings
Size 46.5–81.5 cm1.5–2.7 ft Weight 0.6–6.3 kg1.3–13.9 lb active by night grassland

Sightings by month

Thirteen-lined ground squirrel crouched beside short grass

Thirteen-lined ground squirrel

Ictidomys tridecemlineatus

Rarely seen in Utah 19 sightings
Size 17–30 cm6.7–11.8 in Weight 173 g6.1 oz active by day grassland

Sightings by month

Townsend's big-eared bat roosting on a cave wall

Townsend's Big-eared Bat

Corynorhinus townsendii

Occasional in Utah 49 sightings
Size 5.8 cm2.3 in Weight 9–11 g0.3–0.4 oz active by night coastal

Sightings by month

Uinta Chipmunk in natural habitat

Uinta Chipmunk

Neotamias umbrinus

Common in Utah 1,552 sightings
Size 14.2 cm5.6 in Weight 52 g1.8 oz active by day montane forest

Sightings by month

Uinta ground squirrel (14952252050)

Uinta Ground Squirrel

Urocitellus armatus

Common in Utah 1,373 sightings
Size 28–30 cm11–11.8 in Weight 210 g7.4 oz active by day river

Sightings by month

Cynomys parvidens (29773080212)

Utah Prairie Dog

Cynomys parvidens

Common in Utah 413 sightings
Size 30.5–36 cm12–14.2 in Weight 0.8–1.4 kg1.7–3.1 lb active by day grassland

Sightings by month

Vagrant shrew crossing bare sandy ground

Vagrant Shrew

Sorex vagrans

Common in Utah 484 sightings
Size 6.8 cm2.7 in Weight 4–8 g0.1–0.3 oz active day & night montane forest

Sightings by month

Virginia Opossum clinging to a tree branch in a snowy winter woodland

Virginia Opossum

Didelphis virginiana

Marginal occurrence · 2 records
Size 40.8 cm16.1 in Weight 1.1–1.6 kg2.5–3.6 lb active by night river

Sightings by month

Western deer mouse sheltering in a rock crevice

Western Deer Mouse

Peromyscus sonoriensis

Occasional in Utah 78 sightings
Size 12–20 cm4.7–7.9 in Weight 15–32 g0.5–1.1 oz active by night river

Sightings by month

Western harvest mouse moving through dry stems and gravel

Western Harvest Mouse

Reithrodontomys megalotis

Common in Utah 454 sightings
Size 11.8–17 cm4.6–6.7 in Weight 11 g0.4 oz active by night wetland

Sightings by month

Western heather vole tucked among moss and wet alpine leaves

Western Heather Vole

Phenacomys intermedius

Occasional in Utah 87 sightings
Size 11.2 cm4.4 in Weight 40 g1.4 oz active day & night alpine

Sightings by month

Little brown myotis roosting alertly on a wooden beam

Western Little Brown Myotis

Myotis lucifugus

Rarely seen in Utah 22 sightings
Size 8–9.5 cm3.1–3.7 in Weight 6–13 g0.2–0.5 oz active by night cave

Sightings by month

Western meadow vole Talkeetna alaska

Western Meadow Vole

Microtus drummondii

Occasional in Utah 66 sightings
Size 13–20 cm5.1–7.9 in Weight 39 g1.4 oz active day & night river

Sightings by month

Western red bat roosting among green leaves, showing rusty-orange fur and dark wing membranes

Western Red Bat

Lasiurus frantzii

Range-listed · no digitized records yet
Size 10–12 cm3.9–4.7 in Weight 9–15 g0.3–0.5 oz active by night desert
Western small-footed myotis roosting on wood with its dark face mask visible

Western Small-footed Myotis

Myotis ciliolabrum

Rarely seen in Utah 20 sightings
Size 8–10 cm3.1–3.9 in Weight 4–5 g0.1–0.2 oz active by night desert

Sightings by month

Western spotted skunk with a clear broken-stripe pattern, alert on a branch at night

Western Spotted Skunk

Spilogale gracilis

Rarely seen in Utah 14 sightings
Size 35–45 cm13.8–17.7 in Weight 336–734 g0.7–1.6 lb active by night mixed forest

Sightings by month

Western water shrew at the grassy edge of a stream

Western Water Shrew

Sorex navigator

Common in Utah 561 sightings
Size 13–17 cm5.1–6.7 in Weight 13 g0.5 oz active day & night river

Sightings by month

White-tailed antelope squirrel showing the pale flank stripe and white tail underside

White-tailed Antelope Squirrel

Ammospermophilus leucurus

Common in Utah 708 sightings
Size 18.8–23.9 cm7.4–9.4 in Weight 97 g3.4 oz active by day pinyon-juniper woodland

Sightings by month

White-tailed Deer (Odocoileus virginianus)

White-tailed Deer

Odocoileus virginianus

Marginal occurrence · 2 records
Size 0.9–2.2 m3.1–7.2 ft Weight 68–136 kg149.9–299.8 lb active day & night mixed forest

Sightings by month

White-tailed Jackrabbit (Lepus townsendii)

White-tailed Jackrabbit

Lepus townsendii

Rarely seen in Utah 30 sightings
Size 45–65 cm1.5–2.1 ft Weight 2.6–4.3 kg5.7–9.5 lb active by night grassland

Sightings by month

Whitetailedprairiedoghi

White-tailed Prairie Dog

Cynomys leucurus

Occasional in Utah 276 sightings
Size 30–37 cm11.8–14.6 in Weight 0.8–1.5 kg1.8–3.3 lb active by day grassland

Sightings by month

Whitethroat Woodrat - (Neotoma albigula) (9853933874)

White-throated Woodrat

Neotoma albigula

Occasional in Utah 140 sightings
Size 19.6 cm7.7 in Weight 191 g6.7 oz active by night sonoran desert

Sightings by month

Adult wild boar foraging in grass

Wild Boar

Sus scrofa

Marginal occurrence · 5 records
Size 85–90 cm2.8–3 ft Weight 40–50 kg88.2–110.2 lb active day & night lake

Sightings by month

Wolverine (Gulo gulo)

Wolverine

Gulo gulo

Marginal occurrence · 3 records
Size 17–26 cm6.7–10.2 in Weight 7–18 kg15.4–39.7 lb active by night urban

Sightings by month

Wyoming ground squirrel peering from a burrow entrance

Wyoming Ground Squirrel

Urocitellus elegans

Rarely seen in Utah 6 sightings
Size 19–24 cm7.5–9.4 in Weight 299 g10.5 oz active by day montane forest

Sightings by month

Marmota flaviventris (29862435206)

Yellow-bellied Marmot

Marmota flaviventris

Common in Utah 1,179 sightings
Size 47–68 cm1.5–2.2 ft Weight 3–5 kg6.6–11 lb active by day great basin desert

Sightings by month

Yellow-pine Chipmunk 2a wray (8272946686)

Yellow-pine Chipmunk

Neotamias amoenus

Occasional in Utah 207 sightings
Size 18.1–24.5 cm7.1–9.6 in Weight 30–70 g1.1–2.5 oz active by day grassland

Sightings by month

Yuma myotis crouched on the ground at night

Yuma Myotis

Myotis yumanensis

Rarely seen in Utah 10 sightings
Size 8.4–9.9 cm3.3–3.9 in Weight 6 g0.2 oz active by night coniferous forest

Sightings by month