Wyoming mammals

Gray Wolf in Wyoming

Canis lupus

Native to Wyoming S1 Critically Imperiled in Wyoming

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

Gray Wolf in Wyoming, by the numbers

Common in Wyoming 16th most recorded of 126 mammals logged in Wyoming

1,231 occurrence records
1,205 with iNaturalist photos
Jul 9, 2026 Last seen in Wyoming

Records from 2000–2026.

1,231 total records count every Wyoming occurrence from GBIF and iNaturalist; the map plots a georeferenced sample of 300; the monthly chart covers the 1,212 records with a full observation date.

Field encounter

Where and when you're most likely to encounter a Gray Wolf

Most active: Wyoming, in May to September.

Where
WyomingWY
When
May to September

Observe from a distance and give it room. Never approach, corner, or feed one.

When to be most aware of the Gray Wolf in Wyoming

Most sightings fall in May to September.

1,212 Wyoming occurrence records (iNaturalist and GBIF) by month of year, 2000–2026. Shows when the species is recorded, not a guarantee of presence.

Monthly Wyoming records (table)
MonthRecords
January56
February66
March27
April30
May167
June209
July215
August176
September168
October57
November19
December22

Monthly gray wolf occurrence records (iNaturalist and GBIF) in Wyoming, 2000–2026.

Seasonality

Year-round in Wyoming, with recorded sightings peaking in May–September.

Occurrence map

Where Gray Wolf has been recorded in Wyoming

300 records mapped · zoom and drag to explore

299 Wyoming records mapped

Where gray wolf encounters are recorded

Park, forest, or monumentiNaturalist records
Grand Teton National Park 1

Protected places with the most gray wolf records, from the USGS Protected Areas Database plus named mountain ranges, where encounters are most often recorded, not a full breakdown, so they don't sum to the total. Keep your distance and never approach one.

Where it's recorded in Wyoming

CountyRecords
Park County 967
Teton County 223
Natrona County 3
Fremont County 2
Sweetwater County 2
Lincoln County 1
Niobrara County 1
Big Horn County 1
Converse County 1
Other localities 30

The complete county distribution, spread across 9 Wyoming counties. Every occurrence record falls in one county, so these sum to the total. Counties from GBIF and US Census boundaries.

No state in this atlas wears its wolves on the map like Wyoming. Of 1,231 records, Yellowstone National Park alone holds 1,135, and Park and Teton counties together carry nearly the whole state total.

The reintroduction that reset an ecosystem

Wyoming’s wolves were gone by the 1930s, and their return was deliberate: 31 wolves brought from Canada were released in Yellowstone in 1995 and 1996, with more added the following year. Elk, the region’s great herbivore, became their staple prey, and packs multiplied and pushed outward through Grand Teton National Park and the big wilderness blocks of the Teton, Gros Ventre, and Washakie. The ripple effects on elk behavior and the park’s willow and aspen stands made Yellowstone’s wolves the most studied predators on the continent.

Open valleys, hidden animals

The record peaks from May through September, when pups leave the den, packs gather at rendezvous sites, and the high country opens to travel. Yellowstone’s broad northern valleys give wolves something rare, room to hunt elk in the open, which is why the park’s share of the map dwarfs everything around it. Even so, a wolf pack holds a territory of hundreds of square miles and answers to no schedule, and plenty of people who spend years in the Greater Yellowstone backcountry never see one.

Status in Wyoming

NatureServe ranks the gray wolf S1, Critically Imperiled, in Wyoming. The species is native to the state, USGS NAS does not list it as nonindigenous, and it is not specifically listed under Wyoming’s state-level conservation framework.

Occurrence data from iNaturalist and GBIF.

Gray Wolf in other states

View all states →

More mammals in Wyoming 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"