60% of the world's geysers and hot springs are inside Yellowstone National Park, located in Wyoming, USA. Old Faithful, of course, is one of the most well known geysers in Yellowstone. It erupts quite often and there are trails to walk along, to see it from many angles. Some other important geysers and hot springs are: Grand Prismatic Spring,
Midway Geyser Basin, Norris Geyser Basin, West Thumb Geyser Basin, Fountain Paint Pot, Black Sand Basin, Castle Geyser, Mammoth Hot Springs.
You can see more detailed information at the site, below:
If the name of each geyser/hot springs above, are in 'blue', you can click right on them to see more information, as well.
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