YELLOWSTONE + GRAND TETON NATIONAL PARKS Yellowstone is located in the northwest corner of Wyoming extending into Montana and Idaho. It was established in 1872 and was the first national park in the United States. The Park is known for its many geothermal areas and wildlife. Read More TravelKerrin Burke LahrJuly 9, 2021yellowstone national park, ynp, grand tetons national park, npa, nps, travel, hiking, Travel Photography blog, national geographic travel, mountains, geothermal, horses, Wyoming tourism, grand teton national park, wildflowers, grizzly, waterfall