The most beautiful parks in the US are as follows: Crater Lake National Park, California This park is immense, with a mile-high wall of the crater rim surrounding the blue waters of the lake. Inside there are two islands, Wizard Island and Phantom Ship, which are half-submerged in the lake. Kennecott Copper Mine, Alaska This national park is full of history. The park comprises of the mine buildings and old town, which is made up of log cabins and mines. Zion National Park, Utah The park offers stunning canyons, with huge red rock cliffs, sweeping vistas and dense forests. Yellowstone National Park, Wyoming Yellowstone is famous for the diverse wildlife and recreational activities, which include fishing, hiking, boating and camping. Yosemite National Park, California The park is famous for its huge waterfalls, deep valleys, giant sequoia trees and rock formations, like Half Dome and El Capitan.