17 species · 30 years of NPS data
Every Yellowstone animal, mapped — including the ones that are hard to find.
Interactive territory maps, pack histories, and field guides for all 17 species — from bison herds and elk rut to the rare wolverine, lynx, and mountain lion. Built on official NPS, USGS, and NOAA data.
The animals everyone wants to see
Top demand · deep NPS data
The northern range is the world's best wolf-watching.
Yellowstone's apex omnivore — spring meadows, fall hyperphagia.
Forest edges and Tower-Roosevelt — smaller, more arboreal.
~5,000 in two herds — Hayden & Lamar valleys.
Most abundant large mammal — September bugling rut.
Hard to find — and worth the effort
The species enthusiasts chase. Rare, elusive, or low-density — a sighting of any of these is a trip highlight.
Rare & declining — willow marshes, a real prize.
Elusive winter prize — three color morphs.
The ghost — a sighting is exceptional.
Playful on ice-free rivers — a joyful sighting.
Sage-flat digger — summer evening specialist.
Forest mustelid — uncommon in conifer canopy.
Among the rarest sightings in the park.
Federally threatened — effectively never seen.
More animals to spot
Common or lower-profile, but part of the park's full cast.
Interactive tools
Latest Wildlife Sightings
Twice-daily Yellowstone wildlife research with dated observations, source links, confidence, and official park access conditions.
Data Explorer
Browse Yellowstone wolf population history, bear management data, and monthly weather from official NPS, USGS, and NOAA sources.
Wildlife Map
Explore an interactive Yellowstone wildlife map with 30 years of NPS wolf pack territories, official viewing locations, and park places.
Wildlife by Month
Yellowstone wildlife month by month: average weather, daylight hours, and seasonal wildlife notes for every month to plan your visit.
Where to go
Lamar Valley
Lamar Valley wildlife: why the northern range is one of the world's best wolf-watching spots, with species, packs, and safe viewing guidance.
Hayden Valley
Hayden Valley wildlife guide: bison herds, grizzly viewing, river valleys, access, and the best times of day to visit in Yellowstone.
Lamar vs Hayden
Lamar Valley vs Hayden Valley compared: wolves, bears, bison, crowds, access, and time of day — a practical wildlife-viewing comparison.
Bear watching guides
Everything you need for a bear sighting: the field method, the habitat, and the timing — all built on official NPS bear management data.
How to See Bears
How to see a bear in Yellowstone: dawn glassing, reading meadows, bear jams, ranger reports, optics, and seasonal tactics from official NPS sources.
Where to See Bears
Where to see bears in Yellowstone: grizzly vs black bear habitats, spring emergence dates, and viewing areas from NPS bear management data.
Best Time for Bears
Best time to see bears in Yellowstone: spring emergence, fall hyperphagia, denning, and weather-based timing from NPS bear reports.