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Bison in the Campground
Bison frequent the campgrounds in the park. Be respectful and keep your distance - these wild animals are very large and very fast.
Bison on the Wind Canyon trail
Bison often use the park's hiking trails.
Young Bison Bull
The bison in the park use trees, trashcans, benches, and signs to rub against to help remove their winter coats.
Bison have a thick winter coat as seen in this photograph.
When Bison calves are born they have an orange coat that turns brown over the summer months.
Bison Calf with Herd
This Bison calf is losing its orange coloring at the end of the summer.
There are Bison in the North and South Units of Theodore Roosevelt National Park.
Bison at Sunset
These Bison are whallowing in the dirt as the sunsets in Theodore Roosevelt National Park.
Newborn Bison Calf
A Bison calf walks along a ridge at sunset.
Old Bison Bull
Old Bison bulls leave the herd and live on their own for the remainder of their lives.
On hot summer days Bison visit prairie dog towns in Theodore Roosevelt National Park.
The end of the summer is the rutting season for the park's Bison.
Bison inhabit the North and South Units of the park.
Bison rub against trees, rocks, and man-made objects to remove their winter coats in the spring.
A bull bison walking along the South Unit's Scenic Loop Drive.
Young Bison Calf
Calves are orange in color when they are born. They typically turn brown by their first winter.
Last updated: August 1, 2014