 In 1892, Adirondack Park, roughly the size of the state of Vermont and the largest state park in the United States, was established and given state constitutional protection to remain "forever wild" in 1894.The park is larger than Yellowstone, Everglades, Glacier, and Grand Canyon national parks combined.It is larger than the Yellowstone, Yosemite, Grand Canyon, Glacier, and Olympic National Parks combined.