Yellowstone National Park is widely considered the best place in the world to see wild American bison. It is home to the largest and oldest bison population on public land in the United States, with thousands of individuals roaming freely across the park's vast valleys. The Hayden and Lamar Valleys are particularly famous "hotspots" where massive herds can often be seen grazing, crossing rivers, or even blocking traffic on the park's roads. Unlike many other locations where bison are kept in fenced enclosures, Yellowstone's bison are truly wild and follow ancient migratory patterns. For a different experience, Wind Cave National Park and Badlands National Park in South Dakota also offer incredible viewing opportunities against dramatic prairie and rock landscapes. In India, the Bison (Rajbari) National Park in Tripura is the premier destination to see the Indian Gaur, often referred to as the Indian Bison, which is the largest extant bovine species in the world and a majestic sight in the bamboo-rich forests.