Yellowstone is US first National Park. It is also the world’s oldest. The park was created in 1872. Today National Parks are established for purpose of conservation. These are designated areas of natural beauty, an island in a developing world. Today, Yellowstone National Park is probably the best known in the world and easily accessible. Wildlife abounds from the smallest to the largest mammals found in North America. The wolf, here, is a recovery story that is a major restoration of the balance of nature. There large herd of bison roaming in park, following their migration routes. Black and brown bears are frequently seen here. The park lies in the heart of the the Rocky Mountain Range. Here, powerful volcanic forces erupted 2 million, 1.3 million and as recently as 640,000 years ago, to create three of the world’s largest volcanic depressions, or calderas. Native Americans have lived in the region for at least 11,000 years. Today with large number of visitors, the management and control of the park is vital to ensure its long term future.