Geyser Watch

 An Online Field Journal at


Watching water go the other way…

as well as many more not-quite-so-exciting thermal features of Yellowstone.


GeyserWatch is moving here – lots of changes happening this year!

Thanks for your patience as we shuffle things around. You can still head over to the old site:


Yellowstone's Upper Geyser Basin
Yellowstone's West Thumb Geyser Basin


Watching Ledge Spring Erupt

Ledge Spring is one of the thermal features at West Thumb that has benefited from the energy increase that started last August with the appearance of "Waterfall Geyser." In just a few days, this spring when from lower water and a crater lined with brown microbes to...

Updates from West Thumb Early June 2017

The thermal energy continues to slowly increase at West Thumb Geyser Basin. This dynamic geyser basin is used to energy shifts, but this one is pretty good and will be fun to watch what happens over the summer. At best, I'm hoping to see another geyser or two...

Fountain Paint Pots area update early June 2017

More changes happening in Yellowstone - which really isn't news, but change is always fun to watch. This time it's in the Lower Geyser Basin in the Fountain Paint Pots area. A new vent has opened up near Clepsydra Geyser that's known to be a fairly constant performer...

An excellent video by Yellowstone National Park Service