Historical Foundations of Natural Parks of USA, Turkey and World Expositions. National Parks USA The United States has a vast and diversified network of national parks, each of which protects distinct landscapes, ecosystems, and cultural heritage. Established in 1872 with the establishment of Yellowstone National Park, the United States National Park System has since expanded to include over 400 parks, monuments, and other protected places in all 50 states and territories. These parks span from Alaska's immense wilderness, Denali National Park, to Arizona's famed red rock formations, Grand Canyon National Park. Aside from its natural beauty, national parks provide educational opportunities, scientific study, and leisure activities like as hiking, camping, and animal viewing. The National Park Service oversees these regions, assuring their preservation for future generations while encouraging sustainable tourism. The parks also represent the country's devotion. The parks als...