Old Faithful is a geyser in Yellowstone National Park, in Wyoming, United States. It is probably the best-known geyser in the world, and it is one of the park's most visited landmarks. Visitors come to watch it erupt, and the eruption is the centre of the visit.
What to expect
Old Faithful erupts roughly every 90 minutes. Its water rises to heights of about 130 to 185 feet, a column that is tall enough to be seen well from the viewing area. Because the interval is approximate, it is sensible to check the timing when you arrive and plan to wait nearby rather than to arrive exactly on the hour.
The area around the geyser has extensive boardwalks, which let you move through the thermal ground without leaving the paths. Visitor facilities are built around the geyser, so you can sit, watch, and take in the surroundings while you wait.
Planning your visit
- Allow time for the wait between eruptions, and treat the wait as part of the visit.
- Stay on the boardwalks, which protect both you and the fragile thermal features around you.
- Give yourself time to explore the other geyser basins nearby, since the geyser sits within a wider area of thermal activity.
Old Faithful suits anyone who wants to see one of the great natural spectacles of the American West, whether travelling as a family, as a couple, or alone. It is a short, memorable stop for those exploring Yellowstone National Park, and it is well worth building into a day in the park.