Best time to travel to Yellowstone National Park

Bighorn Sheep in Yellowstone National Park

Check out the bighorns on the slopes of the mountains

Best time: May–June | November

Bighorn Sheep
Bighorn Sheep

The bighorn sheep are mainly found in the northern part of the Park. Around 13 bands and over 300 bighorn sheep can be seen in this territory. Mount Everts and Gardner Canyon has the biggest concentration of these animals.

During summer season bighorns can be seen on the slopes of Mount Washburn and along Dunraven Pass. Bighorn sheep weigh from 80 to 135 kg, and their horns can weigh up to 20 kg. Throughout summer they grow the most. The horns influence the rank and the dominance inside the band, especially during the mating season.

The rut begins in November, and this is the time to see impressive fights, especially when two rams have the same size horns. Lambs are born in May and June.

Practical info

When is the best time to witness bighorn sheep in Yellowstone National Park?

May and June are the optimal months to witness bighorn sheep in Yellowstone National Park, before and right after birth of the lambs, respectively. Rut season in November is another prime opportunity to spot bighorns. Along Dunraven Pass and the slopes of Mount Washburn throughout the summer months, visitors can observe the animals. The park houses over 300 sheep and around 13 bands, confirming Yellowstone as a premier spot for observing bighorn sheep. Show more

In what locations throughout Yellowstone National Park might visitors see bighorn sheep?

Bighorn sheep are most commonly viewed in the northern area of Yellowstone National Park in places like Mount Everts and Gardner Canyon. During the summer months, they can also be seen wandering along Dunraven Pass and on the slopes of Mount Washburn. Yellowstone is home to over 300 bighorn sheep divided into around 13 bands with the perfect geography for observing them in their natural habitat. Show more

What is the number of bighorn sheep typically found in Yellowstone National Park?

In Yellowstone National Park, it is commonplace to encounter over 300 bighorn sheep dispersed in approximately 13 groups. Yellowstone's rugged mountains are home to bighorn sheep year-round, making it a destination to see the creatures when visiting. Their stunning horns, which grow the most during summer months and can weigh up to 20 kg, make them stand out in a crowd. Show more

During what time of year does bighorn sheep mating season occur?

November is the rut, also referred to as mating season, for bighorn sheep. Males will engage in physical battles, especially those with horns identical in size, to show their dominance within the band. Larger horn size signifies higher privilege and more breeding opportunities with the female ewes. The behavior and competitiveness of these animals during this time piques the interest of many guests. Show more

What is the possible weight of bighorn sheep horns?

Bighorn sheep have horns that could weigh up to 20 kg. In deciding rank and domination within their respective bands, these horns play an essential role, particularly during mating season. Yellowstone National Park is home to an estimated 300 bighorn sheep that range in mass from 80 to 135 kg. Their size and striking horns make them easily recognizable throughout the park’s rugged terrain. Show more

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Last updated: by Eleonora Provozin