Yellowstone National Park, US-Over 1,700 species of trees and many other vascular plants are native to the park-almost 60 species of mammals in the park, including the threatened lynx, and grizzly bears.-located at the headwaters of the Yellowstone River-96 percent of the Yellowstone National Park is located within the state of Wyoming. Another three percent is within Montana, and the remaining one percent is in Idaho-an UNESCO World Heritage Site-first national park in the world (1872)-Sapphire Pool, Old Faithful, Castle Geyser