Geyser Watch
An Online Field Journal at YellowstoneNaturalist.com
Watching water go the other way…
as well as many more not-quite-so-exciting thermal features of Yellowstone.
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Jan 2024
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Geyser Watch Blog Posts
A few observations from opening days in Yellowstone
Happy Thermal Thursday! In this post, I’m sharing a few more of the smaller observations from the beginning of the 2019 summer season. Depression Geyser The amount of microbes growing in the overflow from Depression Geyser somewhat surprised me. I believe that’s...
Small Changes in the Chinese Spring Area
We’re almost here to opening weekend for the East Gate – though it will be another week until West Thumb Geyser Basin is accessible. Patience. I keep telling myself just to be patient. Before my fall last week, I had intended to put up a reasonably cohesive post about...
Get to know Aurum Geyser
This post takes a closer look at Aurum Geyser, one that’s a favorite of many that can take a bit of determination, dedication and a healthy dose of patience to witness up close. WHERE IT’S LOCATED Aurum Geyser is located on the upper side of Geyser Hill, a short walk...
Get to know Giant Geyser
Giant Geyser is the largest geyser in the Upper Geyser Basin and second largest in the world, only being beaten out by Steamboat Geyser over at Norris Geyser Basin. Since I’ve written about Giant Geyser before, in this article, I’ll drill down to just the bare basics...
Get to know Blue Star Spring
Everyone wants to see Old Faithful erupt on their visit to Yellowstone. Before or after you watch this world-famous geyser erupt, know that there’s a short loop that takes you around Old Faithful. This easy walk takes you past one of the beautiful blue pools. In this...
Get to know the area behind Spasmodic Geyser
In this post, I’m following up last Thursday’s post with observations about an area that may be part of the changes we’ve seen in the Sawmill Group. To best watch this area, though, you may need binoculars or a long lens on a camera to really see the details as it’s...
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 or the Sawmill Complex. This post will give a general overview of this group along with various types of behavior seen here. WHERE IT’S LOCATED No matter if you...
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 has gone by many other names during the early days of the park before the name was finally officially decided by the USGS place names committee in 1927....
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 also closely related to other geysers in the area. In this post, we’ll take a look at not only Grotto Geyser, but also a bit about how geysers are...
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, usually about every 30 minutes. WHERE IT’S LOCATED Doublet Pool is located on the upper boardwalk on Geyser Hill, a short walk from Old Faithful. Near the sign for Doublet...
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 series of eruptions followed by a pause of many hours.• Eruptions are 50-70 feet high and last 4-5 minutes• Is not predicted, but if it is in a series, it’s fairly easy...
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 this beautiful and interesting pool. THE BASICS Not known to naturally erupt. Plumbed to a depth of 27.5 feet. Located about a mile’s walk from Old Faithful....
Get to know Riverside Geyser
Riverside Geyser is a beautiful geyser that’s often more reliable than Old Faithful, sits in a lovely setting and often shows rainbows in the spray in the late afternoon. In this article, I’ll explain how to watch for the signs of an eruption and share some of my...
Get to know Castle Geyser
Castle Geyser is one of the major geysers in the Upper Geyser Basin and it’s eruptions are predicted. Generally you can expect Castle Geyser to erupt once a day during the daylight hours. In this article we’ll take a closer look at this amazing geyser. THE BASICS OF...
Get to know Daisy Geyser
Daisy Geyser was a favorite of my Grandmother. Based on the stories she told me, I think in part because she was around when Park Naturalist, George Marler, was learning more about it in the 1940s and 1950s. In this article, I’ll take you through what to watch for...
Explore the Geyser Basins
