Wildlife activity by season
Wildlife viewing shifts dramatically by season—know the key areas and behaviors to maximize sightings safely.
In spring, female elk gather in the northern range—especially around the Lamar Valley and Blacktail Plateau—where they seek sheltered valleys for calving. Bison begin moving to lower-elevation grasslands in the Hayden Valley area, and pronghorn start appearing near the park’s eastern entrances. Always keep at least 25 yards from all wildlife, especially newborns, which mothers will fiercely defend. Avoid dawn and dusk visits in calving areas unless with a licensed guide; disturbance can cause abandonment.
Summer brings high-elevation access and widespread grazing: elk and bison move to meadows near Tower Fall, Pelican Creek, and the Grand Canyon of the Yellowstone, while grizzlies emerge in the northern range and near Fishing Bridge. Wolves are more visible in the Lamar and Blacktail Plateau as pups emerge from dens, and elk calves grow stronger. Birds such as osprey and bald eagles nest near lakes and rivers, particularly Yellowstone Lake and Lewis Lake. Wildlife is often more visible in early morning or at dusk, and less so during midday drives.
Fall migration peaks in the months of September and October, with elk moving out of high country into the northern range, forming large groups. The Lamar Valley becomes prime wolf-watching ground as herds gather, and grizzlies focus on whitebark pine nuts near Tower Junction or in the Firehole Canyon Drive area. Bighorn sheep descend from alpine zones onto the slopes near Dunraven Pass. During this season, roads near Gardiner and the North Entrance often see heavy animal traffic—drive slowly and use pullouts, never block the road.
