The country that features the famous geyser known as Old Faithful is the United States. Old Faithful is located in Yellowstone National Park, primarily in Wyoming. This iconic geyser is renowned for its predictable eruptions, occurring approximately every 90 minutes. Yellowstone is America’s first national park, established in 1872, and is famous for its geothermal features, diverse wildlife, and breathtaking landscapes. Old Faithful serves as a prime attraction, drawing visitors eager to witness one of nature's most spectacular displays of power and beauty.