The United States National Park system is comprised of over 400 parks, monuments, and other protected areas. Two of the most well-known national parks are Yosemite and Yellowstone. Yosemite is an 8 letter word and is located in California's Sierra Nevada mountains. It is known for its towering granite cliffs, waterfalls, and giant sequoia trees. Yellowstone is an 11 letter word and is located primarily in Wyoming. It is the world's first national park and is home to a variety of wildlife, including bison, elk, and grizzly bears.