Yellowstone’s abundant and diverse wildlife are as famous as its geysers. There are nearly 300 species of birds, 16 species of fish, five species of amphibians, six species of reptiles, and 67 species of mammals—including seven native ungulate species and two bear species., For 500 years, the most enduring – and endearing – residents of the Outer Banks, the wild Colonial Spanish Mustangs, have called this sliver of land between sound and sea home. Are the Salt River horses really wild?, This 38,000-acre preserve is home to a herd of wild mustangs, thought to have been brought to the area by Crow tribes over 200 years ago. Most live on East Pryor Mountain, and these free-ranging mustangs are relatively easy to find., The McCullough Peaks Wild Horse Herd Management Area (HMA) is located 12-27 miles east of Cody and is home to wild mustangs believed to be descendants of Buffalo Bill’s horses. Join us on a day tour to the region to explore outside of Yellowstone National Park., Immerse yourself in Big Sky Country with an optional 4-day adventure to visit the iconic McCullough Peaks wild herd, followed by a day in world-renowned Yellowstone National Park. To finish we’ll spend three weeks taming wild Mustangs at liberty!, The wild horse herds are in the Pryor Mountains which are located around the MontanaWyoming border south of Billings, MT and west to Lovell/Powell Wyoming. Here is a link to a website with more general information - http://www.pryormustangs.org/ And more. http://www.wyomingtourism.org/overview/Wild-Horses/31087. 3. Re: Wild Horses near Yellowstone?.