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Bronze Spring

Usually, this is just an intermittent spring, but occasionally, it becomes a pretty nifty little geyser. These pictures are from July of 2001. The eruptions were apparently triggered by an eruption of nearby Giantess Geyser.

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Giantess Geyser

Giantess Geyser is one of the more reliable of the rare geysers. It's seen at least a few times during most years, and since it goes on for days, it's hard to miss once it starts.

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Giant Geyser

Giant Geyser is just plain big. It's considered a small eruption if it only gets to 200 feet. Unfortunately, it's also really hard to see, with only a few eruptions during most years, none during some years, and only about 10-20 minutes of really powerful play once it starts.

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Vault Geyser

Vault is next to Giantess Geyser, and closely connected to it underground. When Giantess starts erupting, Vault begins to drain. At some point a few hours later, Vault suddenly fills and erupts.

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UNNG-PMG-2

Unnamed geyser #2 (UNNG-PMG-2), Pipeline Meadows Group. Also known as Pipeline Meadows Geyser, and more recently, Megalodon Geyser.

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East Sentinel Geyser

This one's just ridiculous. East Sentinel Geyser never erupts, but I saw it twice in 2001, three weeks apart. Although you won't be able to tell from these pictures, at its best it's actually a good 30 or 40 feet high. Unfortunately, I forgot to grab my camera when I ran over to it for the first eruption, and by the time I noticed the steam cloud for the second one, the big part was already over.

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Silex Spring

Located in the Lower Geyser Basin near the Fountain Paint Pots, Silex Spring has an extensive history of geyser activity, but it took the '80s and '90s off. Since 2000, it's been making up for lost time.

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Hillside Geyser

In the late 1990s, Hillside Geyser emerged from a dormancy so long that most people in the business didn't even know it existed. At best, its 50- to 75-foot, dagger-like eruptions were seen about once per day, although usually it has been much less frequent than that.

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Crater Hills Geyser

One random geyser in the middle of one of the nastiest, smelliest acid sulfate areas in Yellowstone. Also take a look at these pictures of some of the impressive sulfur deposits in the Crater Hills.

last updated 7/21/05

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