Old Faithful Geyser Live! Launch the live streaming webcam more...
What do you need to make a geyser? Check out this animated illustration of geyser ingredients more...
Did You Know?
The 1988 fires affected 793,880 acres or 36 percent of the park. Five fires burned into the park that year from adjacent public lands. The largest, the North Fork Fire, started from a discarded cigarette. It burned more than 410,000 acres.