Monument Geyser Basin is one of the most unique areas of Yellowstone National Park. Its ancient undersea wasteland at 7,300 ...

Keep in mind, biking isn't permitted on the boardwalks near the geysers. – Catherine Parker More than its star attraction (Old Faithful), the Upper Geyser Basin boasts not only the largest ...

U.S. News Insider Tip: Escape the crowds directly in front of Old Faithful and enjoy the geyser's eruption from the second-floor outdoor balcony of the Old Faithful Inn, another national treasure.