The Giant Geyser, south of the Grotto, is the highest in the world. We found a person near it in soldier's uniform who said he had been waiting there a week to see it play. Its maximum height is 250 feet, which is reached during the first twenty minutes of its eruption. Its cone is ten feet high with one side partly broken off. Eruptions occur every seven to twelve days.
Near the Giant are three "boiling caldrons," Catfish, Bijou, and Mastiff. These are supposed to be indicators, but it is uncertain whether the eruptions of the Giant are foretold by them.
The Daisy is a very beautiful and reliable geyser, erupting every one and a half to two hours. Seventy-five feet is its maximum height.
The Bonita Pool, across the road, acts as an indicator.
The Brilliant is a beautiful blue hot spring and near to it is the Comet, which has built up a small cone of geyserite.
When our party reached Castle Geyser on a hill opposite the Giantess, our guide called attention to the fact that the Giantess was in action. Our time was limited, but every member of the party wanted to cross the bridge and go to Geyser Hill and get as near to its crater as possible. We did so, and it was at this time, during the steam period, when the water had receded, that I got a glimpse into its awful depths; and trembled at the yawning chasm which threatened to engulf us. It looked as if it might be connected with the place where the king of darkness dwells and his organized forces operate. We had only a few minutes to tarry, and hastened back to the vicinity of Castle Geyser to renew the journey.
GIANT GEYSER © Haynes, St. Paul
I was grateful for this little diversion, which broke in on the regular program of the tour, feeling that I had been fortunate to see at least one eruption from the crater of the Giantess.