Upper Geyser Basin

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EXPLORE

Yellowstone's Penta Geyser in eruption with a rainbow

Get to know the Sawmill Group of Geysers

Near Grand Geyser is a set of geysers that are known to be connected underground. This is the Sawmill Group ...
Crested Pool in Yellowstone's Upper Geyser Basin

Get to know Crested Pool

As we continue with this series of posts, this week we’re looking at a neighbor of Castle Geyser. Crested Pool ...
A bison rests near Grotto Geyser in Yellowstone

Get to know Grotto Geyser

Grotto Geyser has one of the most unusual cones that attracts attention whether or not the geyser is erupting. It’s ...
Panoramic Photo of Doublet Pool on Geyser Hill, Upper Geyser Basin, Yellowstone

Get to know Doublet Pool

BASICS 8 to 12 feet deep Has rare eruptions of up to 2-3 feet. Thumps can be felt and heard, ...
Two people watch an eruption of Lion Geyser with a backlit curtain of spray behind them.

Get to know Lion Geyser

In this post, we’ll take a look at another geyser on Geyser Hill: Lion Geyser. BASICS • Erupts in a ...
Morning Glory Pool in Yellowstone

Get to know Morning Glory Pool

Morning Glory Pool is one of the most famous hot springs in Yellowstone. In this post, you’ll learn more about ...
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