Numerous other geysers equal or excel Old Faithful in volume or height,
but most lack its regularity. The Giant Geyser exceeds all others in the
amount of water expelled. Its jet of steaming water sometimes reaches
250 feet, and continues for an entire hour, but it gives no advance
notice of when it will burst forth.
[Illustration: Visitors examine the weird crater of Comet Geyser]
Other colorful geysers include the Beehive, Riverside, Grotto, Castle
and the Sawmill. Their descriptive names are derived from their
fantastic and unusual formations. For sheer individual splendor, the
Grand, Giantess and Fountain Geysers are noteworthy.